Description and operation
If the Gasoline Engine Control system components (sensors, ECM, injector, etc.) fail, interruption to the fuel supply or failure to supply the proper amount of fuel for various engine operating conditions will result. The following situations may be encountered.
| 1. | Engine is hard to start or does not start at all. |
If any of the above conditions are noted, first perform a routine diagnosis that includes basic engine checks (ignition system malfunction, incorrect engine adjustment, etc.). Then, inspect the Gasoline Engine Control system components with the HI-SCAN (Pro).
| •
| Before removing or installing any part, read the diagnostic trouble codes and then disconnect the battery negative (-) terminal. |
| •
| Before disconnecting the cable from battery terminal, turn the ignition switch to OFF. Removal or connection of the battery cable during engine operation or while the ignition switch is ON could cause damage to the ECM. |
| •
| The control harnesses between the ECM and heated oxygen sensor are shielded with the shielded ground wires to the body in order to prevent the influence of ignition noises and radio interference. When the shielded wire is faulty, the control harness must be replaced. |
| •
| When checking the generator for the charging state, do not disconnect the battery '+' terminal to prevent the ECM from damage due to the voltage. |
| •
| When charging the battery with the external charger, disconnect the vehicle side battery terminals to prevent damage to the ECM. |
|
Malfunction Indicator Lamp (MIL)
A malfunction indicator lamp illuminates to notify the driver that there is a problem with the vehicle. However, the MIL will go off automatically after 3 subsequent sequential driving cycles without the same malfunction. Immediately after the ignition switch is turned on (ON position - do not start), the MIL will illuminate continuously to indicate that the MIL operates normally.
Faults with the following items will illuminate the MIL.
| •
| Manifold Absolute Pressure Sensor (MAPS) |
| •
| Intake Air Temperature Sensor (IATS) |
| •
| Engine Coolant Temperature Sensor (ECTS) |
| •
| Throttle Position Sensor (TPS) [integrated into ETC Module] |
| •
| Upstream Oxygen Sensor Heater |
| •
| Downstream Oxygen Sensor |
| •
| Downstream Oxygen Sensor Heater |
| •
| Crankshaft Position Sensor (CKPS) |
| •
| Camshaft Position Sensor (CMPS) |
| •
| Evaporative Emission Control System |
| •
| Vehicle Speed Sensor (VSS) |
| •
| ETC Motor [integrated into ETC Module] |
| •
| Refer to "Inspection CHART FOR DIAGNOSTIC TROUBLE CODES (DTC)" for more information. |
|
A malfunction indicator lamp illuminates to notify the driver that there is a problem with the vehicle. However, the MIL will go off automatically after 3 subsequent sequential driving cycles without the same malfunction. Immediately after the ignition switch is turned on (ON position - do not start), the MIL will illuminate continuously to indicate that the MIL operates normally.
Faults with the following items will illuminate the MIL
| •
| Heated oxygen sensor (HO2S) |
| •
| Manifold Absolute Pressure Sensor (MAPS) |
| •
| Throttle Position Sensor (TPS) [integrated into ETC Module] |
| •
| Engine coolant temperature sensor (ECTS) |
| •
| ETC Motor [integrated into ETC Module] |
| •
| Refer to "Inspection CHART FOR DIAGNOSTIC TROUBLE CODES (DTC)" for more information. |
|
[Inspection]
| 1. | After turning ON the ignition key, ensure that the light illuminates for about 5 seconds and then goes out. |
| 2. | If the light does not illuminate, check for an open circuit in the harness, a blown fuse or a blown bulb. |
Self-Diagnosis
The ECM monitors the input/output signals (some signals at all times and the others under specified conditions). When the ECM detects an irregularity, it records the diagnostic trouble code, and outputs the signal to the Data Link connector. The diagnosis results can be read with the MIL or HI-SCAN (Pro). Diagnostic Trouble Codes (DTC) will remain in the ECM as long as battery power is maintained. The diagnostic trouble codes will, however, be erased when the battery terminal or ECM connector is disconnected, or by the HI-SCAN (Pro).
| •
| If a sensor connector is disconnected with the ignition switch turned on, the diagnostic trouble code (DTC) is recorded. In this case, disconnect the battery negative terminal (-) for 15 seconds or more, and the diagnosis memory will be erased. |
|
The Relation Between DTC and Driving Pattern In EOBD System
| 1. | When the same malfunction is detected and maintained during two sequential driving cycles, the MIL will automatically illuminate. |
| 2. | The MIL will go off automatically if no fault is detected after 3 sequential driving cycles. |
| 3. | A Diagnostic Trouble Code (DTC) is recorded in ECM memory when a malfunction is detected after two sequential driving cycles. The MIL will illuminate when the malfunction is detected on the second driving cycle. If a misfire is detected, a DTC will be recorded, and the MIL will illuminate, immediately after a fault is first detected. |
| 4. | A Diagnostic Trouble Code (DTC) will automatically erase from ECM memory if the same malfunction is not detected for 40 driving cycles. |
| •
| A "warm-up cycle" means sufficient vehicle operation such that the coolant temperature has risen by at least 40 degrees Fahrenheit from engine starting and reaches a minimum temperature of 160 degress Fahrenheit. |
| •
| A "driving cycle" consists of engine startup, vehicle operation beyond the beginning of closed loop operation. |
|
Components and components location
1. Engine Control Module (ECM)
2. Manifold Absolute Pressure Sensor (MAPS)
3. Intake Air Temperature Sensor (IATS)
4. Boost Pressure Sensor (BPS)
5. Engine Coolant Temperature Sensor (ECTS) #1
6. Rail Pressure Sensor (RPS)
7. Engine Coolant Temperature Sensor (ECTS) #2
8. Knock Sensor (KS)
9. Throttle Position Sensor (TPS) [integrated into ETC Module]
10. ETC Motor [integrated into ETC Module]
11. Crankshaft Position Sensor (CKPS)
12. Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
13. Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
14. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
15. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
16. Accelerator Position Sensor (APS)
17. CVVT Oil Control Valve (OCV)
18. Oil Pressure Sensor (OPS)
| 19. Fuel Level Sender (FLS)
20. Air Temperature Sensor (ATS)
21. A/C Pressure Transducer (APT)
22. Injector
23. Purge Control Solenoid Valve (PCSV)
24. Variable Force Solenoid (VFS) [Bank 1 / Intake]
25. Variable Force Solenoid (VFS) [Bank 1 / Exhaust]
26. Electric WGT Control Actuator (EWGA)
27. RCV Control Solenoid Valve
28. Fuel Pressure Control Valve (FPCV)
29. Integrated Thermal Mangement Module (ITM) Motor
30. CVVD Acturator
31. Ignition Coil
32. Main Relay
33. Fuel Pump Relay
34. Data Link Connector (DLC)
35. Multi-Purpose Connector (MPCC)
|
1. Engine Control Module (ECM)
| 2. Manifold Absolute Pressure Sensor (MAPS)
3. Intake Air Temperature Sensor (IATS)
|
| 
|
4. Boost Pressure Sensor (BPS)
| 5. Engine Coolant Temperature Sensor (ECTS) #1
6. Rail Pressure Sensor (RPS)
|
| 
|
7. Engine Coolant Temperature Sensor (ECTS) #2
8. Knock Sensor (KS)
| 9. Throttle Position Sensor (TPS) [integrated into ETC Module]
10. ETC Motor [integrated into ETC Module]
|
| 
|
11. Crankshaft Position Sensor (CKPS)
| 12. Camshaft Position Sensor (CMPS) [Bank 1 / Intake]
|
| 
|
13. Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust]
| 14. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1]
|
| 
|
15. Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2]
| 16. Accelerator Position Sensor (APS)
|
| 
|
17. CVVT Oil Control Valve (OCV)
18. Oil Pressure Sensor (OPS)
| 19. Fuel Level Sender (FLS)
|
| 
|
20. Air Temperature Sensor (ATS)
| 21. A/C Pressure Transducer (APT)
|
| 
|
22. Injector
| 23. Purge Control Solenoid Valve (PCSV)
|
| 
|
24. Variable Force Solenoid (VFS) [Bank 1 / Intake]
| 25. Variable Force Solenoid (VFS) [Bank 1 / Exhaust]
|
| 
|
26. Electric WGT Control Actuator (EWGA)
| 27. RCV Control Solenoid Valve
|
| 
|
28. Fuel Pressure Control Valve (FPCV)
| 29. Integrated Thermal Mangement Module (ITM) Motor
|
| 
|
30. CVVD Acturator
| 31. Ignition Coil
|
| 
|
32. Main Relay
33. Fuel Pump Relay
| 34. Data Link Connector (DLC)
|
| 
|
35. Multi-Purpose Connector (MPCC)
|
|
|
|
Engine Control Module (ECM)
Schematic diagrams
| ECM Terminal And Input/Output signal |
Connector [A]
Pin No
|
Description
|
1
| Fuel Pressure Control Valve (FPCV) [High] control
|
2
| Integrated Thermal Mangement Module (ITM) Motor (+)
|
3
| Integrated Thermal Mangement Module (ITM) Motor (-)
|
4
| -
|
5
| Engine Coolant Temperature Sensor (ECTS) #1 (Ground)
|
6
| -
|
7
| Engine Coolant Temperature Sensor (ECTS) #2 (Ground)
|
8
| -
|
9
| Rail Pressure Sensor (RPS) (Ground)
|
10
| -
|
11
| Manifold Absolute Pressure Sensor (MAPS) (Ground)
|
12
| Electric WGT Control Actuator (EWGA) (Ground)
|
13
| -
|
14
| Oil Pressure & Temperature Sensors (OPTS) (Ground)
|
15
| -
|
16
| -
|
17
| A/C Pressure Transducer (APT) (Ground)
|
18
| Sensor Power (+5V) (Camshaft Position Sensor (CMPS) [Bank 1 / Intake, Exhaust])
|
19
| Sensor Power (+5V) (MAPS, CKPS)
|
20
| Sensor Power (+5V) (OPS, ETC, RPS)
|
21
| Sensor Ground (Throttle Position Sensor (TPS))
|
22
| -
|
23
| -
|
24
| Sensor Shield (Knock Sensor (KS))
|
25
| -
|
26
| Ignition Coil (Cylider #3) Control
|
27
| -
|
28
| -
|
29
| -
|
30
| -
|
31
| -
|
32
| -
|
33
| -
|
34
| -
|
35
| Integrated Thermal Mangement Module (ITM) Motor (Ground)
|
36
| -
|
37
| Camshaft Position Sensor (CMPS) [Bank 1 / Intake] Signal
|
38
| -
|
39
| Electric WGT Control Actuator (EWGA) Signal
|
40
| Sensor Power (+5V) (EWGA)
|
41
| Sensor Power (+5V) (APS #1)
|
42
| Sensor Power (+5V) (APT)
|
43
| Injector (Cylinder #3) [+] Control
|
44
| Injector (Cylinder #2) [+] Control
|
45
| -
|
46
| -
|
47
| CCP-CAN (High)
|
48
| Ignition Coil (Cylider #1) Control
|
49
| -
|
50
| -
|
51
| -
|
52
| -
|
53
| -
|
54
| -
|
55
| -
|
56
| -
|
57
| -
|
58
| -
|
59
| -
|
60
| Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] (Ground)
|
61
| -
|
62
| -
|
63
| Engine RPM Output
|
64
| Injector (Cylinder #1) [+] Control
|
65
| Injector (Cylinder #4) [+] Control
|
66
| Injector (Cylinder #3) [-] Control
|
67
| Injector (Cylinder #4) [-] Control
|
68
| Ignition Coil (Cylider #2) Control
|
69
| CCP-CAN (Low)
|
70
| Camshaft Position Sensor (CMPS) [Bank 1 / Exhaust] Signal
|
71
| Crankshaft Position Sensor (CKPS) (Ground)
|
72
| Ignition Lock Switch Control
|
73
| Oil Pressure Sensor (OPS) Signal
|
74
| Intake Air Temperature Sensor (IATS) Signal
|
75
| Engine Coolant Temperature Sensor (ECTS) #1 Signal
|
76
| Engine Coolant Temperature Sensor (ECTS) #2 Signal
|
77
| -
|
78
| -
|
79
| Throttle Position Sensor (TPS) 2 Signal
|
80
| Rail Pressure Sensor (RPS) Signal
|
81
| -
|
82
| Integrated Thermal Mangement Module (ITM) Motor Signal
|
83
| -
|
84
| A/C Pressure Transducer (APT) Signal
|
85
| -
|
86
| Injector (Cylinder #2) [-] Control
|
87
| Injector (Cylinder #1) [-] Control
|
88
| Fuel Pressure Control Valve (FPCV) [Low] control
|
89
| -
|
90
| Ignition Coil (Cylider #4) Control
|
91
| Crankshaft Position Sensor (CKPS) Signal
|
92
| Integrated Body Control Unit (IBU) External Wake-Up Signal
|
93
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] (Ground)
|
94
| -
|
95
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Signal
|
96
| -
|
97
| Oil Temperature Sensor (OTS) Signal
|
98
| Throttle Position Sensor (TPS) 1 Signal
|
99
| -
|
100
| -
|
101
| Manifold Absolute Pressure Sensor (MAPS) Signal
|
102
| Camshaft Position Sensor (CMPS) [Bank 1 / Intake] (Ground)
|
103
| -
|
104
| Knock Sensor (KS) Signal
|
105
| Knock Sensor (KS) (Ground)
|
Connector [B]
Pin No
|
Description
|
1
| Chassis Ground
|
2
| Chassis Ground
|
3
| Battery power (B+) (Battery)
|
4
| Chassis Ground
|
5
| Battery power (B+) (Main Relay)
|
6
| Battery power (B+) (Main Relay)
|
7
| -
|
8
| -
|
9
| Sensor Power (+5V) (ITM Motor)
|
10
| Sensor Power (+5V) (APS #2)
|
11
| Boost Pressure Sensor (BPS) Signal Input
|
12
| Accelerator Position Sensor (APS #2) (Ground)
|
13
| Accelerator Position Sensor (APS #1) (Ground)
|
14
| -
|
15
| -
|
16
| Boost Pressure Sensor (BPS) (Ground)
|
17
| Fuel Level Sender (FLS) Signal
|
18
| Accelerator Position Sensor (APS #2) Signal
|
19
| -
|
20
| -
|
21
| -
|
22
| Rail Pressure Sensor (RPS) Control
|
23
| Cooling Fan Relay [PMW] Control
|
24
| EWGA DC Motor Control (+)
|
25
| EWGA DC Motor Control (-)
|
26
| Ignition Switch Signal Input
|
27
| Sensor Power (+5V) (BPS)
|
28
| -
|
29
| -
|
30
| Brake [Test] Switch Signal Input
|
31
| Brake [Light] Switch Signal Input
|
32
| Accelerator Position Sensor (APS #1) Signal
|
33
| -
|
34
| -
|
35
| Engine Start Switch Signal Input
|
36
| -
|
37
| Fuel Pump Relay Control [Without Smart Key] Control
|
38
| -
|
39
| -
|
40
| Variable Oil Pump Valve Control
|
41
| ETC Motor [+] Control
|
42
| ETC Motor [-] Control
|
43
| -
|
44
| -
|
45
| P-CAN (Low)
|
46
| -
|
47
| -
|
48
| Clutch Switch Control
|
49
| Wiper Switch Input
|
50
| -
|
51
| Start Relay (Low) Control
|
52
| -
|
53
| -
|
54
| Electric load Signal Input [Defrost]
|
55
| -
|
56
| -
|
57
| -
|
58
| -
|
59
| -
|
60
| Battery power (B+) (Battery)
|
61
| LIN Communication Signal Input
|
62
| P-CAN (High)
|
63
| -
|
64
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] VS-/IP- (Virtual Ground)
|
65
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Rc/Rp (Pumping Cell Current)
|
66
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Rc (Adjust Resistance)
|
67
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] VS+ (NERNST Cell Current)
|
68
| -
|
69
| -
|
70
| -
|
71
| Start Relay (High) Control
|
72
| -
|
73
| -
|
74
| Engine Control Relay Control
|
75
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 1] Heater Control
|
76
| Heated Oxygen Sensor (HO2S) [Bank 1 / Sensor 2] Heater Control
|
77
| Vehicle Speed Input (IBU, VDC Moduel)
|
78
| CCP-CAN (High)
|
79
| CCP-CAN (Low)
|
80
| -
|
81
| -
|
82
| -
|
83
| Purge Control Solenoid Valve (PCSV) Control
|
84
| Fuel Pump Relay Control [With Smart Key] Control
|
85
| -
|
86
| -
|
87
| Integrated Body Control Unit (IBU) (IMMO, Data Line)
|
88
| -
|
89
| -
|
90
| -
|
91
| -
|
92
| Variable Force Solenoid (VFS) [Bank 1 / Intake] Control
|
93
| Variable Force Solenoid (VFS) [Bank 1 / Exhaust] Control
|
Repair procedures
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the ECM Connector (A). 
|
| 3. | Remove the ECM (B) after releasing the fixing hooks (A). 
|
| 4. | Remove the ECM (B) after loosening the mounting bolts (A). ECM Mounting bolt : 6.7 - 8.3 N.m (0.7 - 0.85 kgf.m, 5.1 - 6.1 lb-ft) |
|
| 1. | Install in the reverse order of removal. |
| 1. | TEST ECM GROUND CIRCUIT : Measure resistance between ECM and chassis ground using the backside of ECM harness connector as ECM side check point. If the problem is found, repair it. |
| 2. | TEST ECM CONNECTOR : Disconnect the ECM connector and visually check the ground terminals on ECM side and harness side for bent pins or poor contact pressure. If the problem is found, repair it. |
| 3. | If problem is not found in Step 1 and 2, the ECM could be faulty. If so, make sure there were no DTC's before swapping the ECM with a new one, and then check the vehicle again. If DTC's were found, examine this first before swapping ECM. |
| 4. | RE-TEST THE ORIGINAL ECM : Install the original ECM (may be broken) into a known-good vehicle and check the vehicle. If the problem occurs again, replace the original ECM with a new one. If problem does not occur, this is intermittent problem. (Refer to "Intermittent Problem Inspection Procedure" in Basic Inspection Procedure) |
ECM neutralization procedure (With immobilizer)
| •
| When replacing the ECM, the vehicle equipped with the immobilizer must be performed procedure as below. |
[In the case of installing used ECM] | 1) | Perform "ECM Neutral mode" procedure with diagnostic tool. (Refer to Body Electrical System - "Immobilizer System") |
| 2) | After finishing "ECM Neutral mode", perform "Keyteaching" procedure with diagnostic tool. (Refer to Body Electrical System - "Immobilizer System") |
[In the case of installing new ECM] | –
| Perform "Key teaching" procedure with diagnostic tool. (Refer to Body Electrical System - "Immobilizer System") |
|
ECM Neutralization procedure (With smart key)
| •
| When replacing the ECM, the vehicle equipped with the smart key system (Button start) must be performed procedure as below. |
[In the case of installing used ECM] | 1) | Perform "ECM Neutral mode" procedure with diagnostic tool. (Refer to Body Electrical System - "Immobilizer System") |
| 2) | After finishing "ECM Neutral mode", insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the ECM learns the smart key information automatically. |
[In the case of installing new ECM] | –
| Insert the key (or press the start button) and turn it to the IGN ON and OFF position. Then the ECM learns the smart key information automatically. |
|
ETC Module Learning Process
After replacing or re-installing the ECM, if you do not perform the ETC module learning procedure, the ETC module learning procedure must be performed since shift shock or failure code may be displayed.
(Refer to Engine Control System - "ETC System")
VIN Programming Procedure
VIN (Vehicle Identification Number) is a number that has the vehicle's information (Maker, Vehicle Type, Vehicle Line/Series, Body Type, Engine Type, Transmission Type, Model Year, Plant Location and so forth. For more information, please refer to the group "GI" in this SERVICE MANUAL). When replacing an ECM, the VIN must be programmed in the ECM. If there is no VIN in ECM memory, the fault code (DTC P0630) is set.
| •
| The programmed VIN cannot be changed. When writing the VIN, confirm the VIN carefully. |
|
| 1. | Turn the ignition switch OFF. |
| 2. | Connect the diagnostic tool to Data Link Connector (DLC). |
| 3. | Turn the igntion switch ON. |
| 4. | Select "Vehicle, Model Year, Engine, System". |
| 5. | Select "Vehicle S/W Management". |
| 6. | Select "Write VIN". 
|
Boost Pressure Sensor (BPS)
Description and operation
Boost pressure sensor (BPS) is installed on top of intercooler output pipe to measures the pressure of supercharged air in the turbocharger.
Specifications
Pressure
[kPa (kgf/cm², psi)]
|
Output Voltage (V)
[Vref = 5.0V]
|
10 (0.10, 1.45)
| 0.5
|
40 (0.40, 5.80)
| 0.91
|
80 (0.81, 11.60)
| 1.47
|
120 (1.22, 17.40)
| 2.02
|
160 (1.63, 23.20)
| 2.57
|
200 (2.03, 29.00)
| 3.12
|
220 (2.24, 31.90)
| 3.4
|
240 (2.44, 34.80)
| 3.67
|
280 (2.85, 40.61)
| 4.22
|
300 (3.05 43.51)
| 4.5
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Connect the diagnostic tool on the Data Link Connector (DLC). |
| 2. | Measure the BPS output voltage in IG ON and idle.
Pressure
[kPa (kgf/cm², psi)]
| Output Voltage (V)
[Vref = 5.0V]
| 10 (0.10, 1.45)
| 0.5
| 40 (0.40, 5.80)
| 0.91
| 80 (0.81, 11.60)
| 1.47
| 120 (1.22, 17.40)
| 2.02
| 160 (1.63, 23.20)
| 2.57
| 200 (2.03, 29.00)
| 3.12
| 220 (2.24, 31.90)
| 3.4
| 240 (2.44, 34.80)
| 3.67
| 280 (2.85, 40.61)
| 4.22
| 300 (3.05 43.51)
| 4.5
|
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the boost pressure sensor connector (A). |
| 3. | Remove the sensor (B) after remove the mounting bolt. Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| •
| Install the component to the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
| •
| Insert the sensor in the installation hole and be careful not to damage it. |
|
| 1. | Install in the reverse order of removal. |
ETC (Electronic Throttle control) System
Description and operation
The Electronic Throttle Control (ETC) System consists of a throttle body with an integrated control motor and throttle position sensor (TPS). Instead of the traditional throttle cable, an Accelerator Position Sensor (APS) is used to receive driver input. The ECM uses the APS signal to calculate the target throttle angle; the position of the throttle is then adjusted via ECM control of the ETC motor. The TPS signal is used to provide feedback regarding throttle position to the ECM. Using ETC, precise control over throttle position is possible; the need for external cruise control modules/cables is eliminated.
Troubleshooting
Items
|
Fail-safe
|
ETC Motor
| Throttle valve stuck at 7°
|
TPS
| TPS 1 fault
| Replace it with TPS2
|
TPS 2 fault
| Replace it with TPS1
|
TPS 1, 2 fault
| Throttle valve stuck at 9.2°
|
| •
| When throttle value is stuck at 9.2°, engine speed is limited at below 1,200 - 1700 rpm. |
|
Specifications
Throttle Position Sensor (TPS)
▷ Type : IC Rotation Sensor type
▷ Specification
Item
|
Sensor Resistance
|
Coil Resistance (Ω)
| 1.29 - 1.57 [20°C(68°F)]
|
Schematic diagrams
Harness Connector
Repair procedures
Throttle Position Sensor (TPS)
| 1. | Connect a diagnostic tool on the Data Link Connector (DLC). |
| 2. | Start engine and check output voltages of TPS 1 and 2 at C.T and W.O.T. Specification : Refer to Specification Section. |
|
ETC Motor
| 1. | Turn the ignition switch OFF. |
| 2. | Disconnect the ETC module connector. |
| 3. | Measure resistance between the ETC module terminals 1 and 2. |
| 4. | Check that the resistance is within the specification. Specification : Refer to Specification Section. |
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Remove the Intercooler outlet hose. (Refer to Engine Mechanical - "Intercooler") |
| 3. | Disconnect the ETC module connector (A). |
| 4. | Disconnect MAPS connector (B). |
| 5. | Remove the ETC mounting bolt (C). Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| 1. | Remove the ETC Module. (Refer to Engine Control System - "ETC System") |
| 2. | Keep the ETC module plate (A) open. 
|
| 3. | Clean the pollutant in the throttle body with a soft cloth moistened with cleaning fluid. 
| •
| Do not spray cleaning fluid directly onto ETC. Use a lint free cloth moistened with cleaning fluid. |
| •
| Be careful not to clean the coating fluid around the shaft. If coating fluid is removed, idling control failure might occur by foreign substance inflow or excessive air leakage. |
|
|
| 4. | After cleaning, re-install the ETC module and then perform the ETC module learning procedure. (Refer to Engine Control System - "ETC System" - Adjustment) |
| •
| Install the component to the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
| 1. | Install in the reverse order of removal. |
ETC Module Learning Procedure
Be sure to perform the ETC module learning procedure when replacing or re-installing the ETC module.
| 1. | Wait for 1 minute with the ignition switch ON. |
| 2. | Start the engine and hold the idle status for 15 minutes. |
| 3. | Waif for 1 minute with the ignition switch OFF. |
| 4. | Restart the engine, and check that the idle speed is stable. | •
| If the ETC module learning procedure is not performed after replacing or reinstalling the ETC module, MIL illumination with DTCs may occur. |
|
|
Manifold Absolute Pressure Sensor (MAPS)
Description and operation
Manifold Absolute Pressure Sensor (MAPS) is a speed-density type sensor and is installed on the surge tank. It senses absolute pressure of the surge tank and transfers the analog signal proportional to the pressure to the ECM. By using this signal, the ECM calculates the intake air quantity and engine speed.
The MAPS consists of a piezo-electric element and a hybrid IC amplifying the element output signal. The element is silicon diaphragm type and adapts pressure sensitive variable resistor effect of semi-conductor. Because 100% vacuum and the manifold pressure apply to both sides of the sensor respectively, this sensor can output analog signal by using the silicon variation proportional to pressure change.
Specifications
Pressure
[kPa (kgf/cm², psi)]
|
Output Voltage (V)
[Vref = 5.0V]
|
10 (0.10, 1.45)
| 0.5
|
40 (0.40, 5.80)
| 0.91
|
80 (0.81, 11.60)
| 1.47
|
120 (1.22, 17.40)
| 2.02
|
160 (1.63, 23.20)
| 2.57
|
200 (2.03, 29.00)
| 3.12
|
220 (2.24, 31.90)
| 3.4
|
240 (2.44, 34.80)
| 3.67
|
280 (2.85, 40.61)
| 4.22
|
300 (3.05 43.51)
| 4.5
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Connect a diagnostic tool on Data Link Connector (DLC). |
| 2. | Check MAPS output voltage at idle and IG ON.
Condition
| Output Voltage (V)
| IG ON
| 3.9 - 4.1
| Idle
| 0.8 - 1.6
|
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the manifold absolute pressure sensor connector (A). |
| 3. | Remove the manifold absolute pressure sensor (B) after loosening the bolt. Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
| •
| Insert the sensor in the installation hole and be careful not to damage when installation. |
|
| 1. | Install in the reverse order of removal. |
Intake Air Temperature Sensor (IATS)
Description and operation
Intake Air Temperature Sensor (IATS) is included inside Manifold Absolute Pressure Sensor and detects the intake air temperature.
To calculate precise air quantity, correction of the air temperature is needed because air density varies according to the temperature. So the ECM uses not only MAPS signal but also IATS signal. This sensor has a Negative Temperature Coefficient (NTC) and its resistance is in inverse proportion to the temperature.
Specifications
Temperature [°C (°F)]
|
Resistance (kΩ)
|
-40 (-40) ± 1
| 38.88 - 50.78
|
-20 (-4) ± 1
| 13.20 - 16.84
|
0 (32) ± 1
| 5.12 - 6.13
|
20 (68) ± 1
| 2.20 - 2.70
|
25 (77) ± 1
| 1.81 - 2.22
|
40 (104) ± 1
| 1.02 - 1.28
|
60 (140) ± 1
| 0.52 - 0.66
|
80 (176) ± 1
| 0.28 - 0.36
|
100 (212) ± 1
| 0.16 - 0.22
|
120 (248) ± 1
| 0.10 - 0.14
|
130 (266) ± 1
| 0.08 - 0.11
|
150 (302) ± 1
| 0.05 - 0.08
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn ignition switch OFF. |
| 2. | Disconnect IATS connector. |
| 3. | Measure resistance between IATS terminals 1 and 2. |
| 4. | Check that the resistance is within the specification. Specification : Refer to "Specification" |
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the manifold absolute pressure sensor connector (A). |
| 3. | Remove the manifold absolute pressure sensor (B) after loosening the bolt. Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
| •
| Insert the sensor in the installation hole and be careful not to damage when installation. |
|
| 1. | Install in the reverse order of removal. |
Engine Coolant Temperature Sensor (ECTS)
Description and operation
The Engine Coolant Temperature Sensor (ECTS) is located in the cylinder block and cylinder head, and measures the temperature of the engine coolant. The thermistor of the cooling water temperature and resistance has a negative temperature coefficient (NTC) where the resistance decreases when the temperature rises and the resistance increases when the temperature decreases. The ECTS # 1 mounted on the cylinder head measures the coolant temperature from the engine, and the ECTS # 2 mounted on the cylinder block measures the coolant temperature entering the engine. The ECTS # 1 and the ECTS # 2 deliver the cooling water temperature to the ECM (Engine Control Module), which delivers the signal to the Thermal Management Module valve (TMM). The TMM that receives the signal controls the flow of coolant to adjust the coolant temperature. In addition, the ECTS calibrates the fuel injection quantity and the ignition timing based on the information of the cooling water temperature to prevent the engine failure and an engine-hunting during a cold start test.
Specifications
Temperature [°C (°F)]
|
Resistance (kΩ)
|
-40 (-40)
| 41.74 - 54.54
|
-30 (-22)
| 23.54 - 29.94
|
-20 (-4)
| 14.13 - 16.83
|
-10 (14)
| 8.39 - 10.22
|
0 (32)
| 5.28 - 6.29
|
10 (50)
| 3.42 - 4.00
|
20 (68)
| 2.31 - 2.59
|
30 (86)
| 1.55 - 1.86
|
40 (104)
| 1.08 - 1.21
|
50 (122)
| 0.77 - 0.85
|
60 (140)
| 0.56 - 0.61
|
70 (158)
| 0.41 - 0.44
|
80 (176)
| 0.31 - 0.33
|
90 (194)
| 0.23 - 0.25
|
100 (212)
| 0.18 - 0.19
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn ignition switch OFF. |
| 2. | Remove the engine coolant temperature sensor (ECTS). (Refer to the Engine Coolant Temperature Sensor - "Removal") |
| 3. | After immersing the thermistor of the sensor into engine coolant, measure resistance between ECTS terminals 1 and 2. |
| 4. | Check that the resistance is within the specification. Specification : Refer to "Specification" |
|
ECTS #1
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Remove the intercooler outlet hose. (Refer to Engine Mechanical System - "Intercooler") |
| 3. | Disconnect the ETC connector. |
| 4. | Loosen the mounting bolt (A). Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
ECTS #2
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Remove the alternator. (Refer to Engine Mechanical System - "Alternator") |
| 3. | Disconnect the ETC connector (A). |
| 4. | Remove the engine coolant temperature sensor (B) after loose the mounting bolt. Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
|
| •
| Insert the sensor in the installation hole and be careful not to damage. |
|
| 1. | Install in the reverse order of removal. |
Crankshaft Position Sensor (CKPS)
Description and operation
Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one of the most important sensors of the engine control system. If there is no CKPS signal input, fuel is not supplied.That is, vehicle can't run without CKPS signal. This sensor is installed on the cylinder block or the transaxle housing and generates alternating current by magnetic flux field which is made by the sensor and the target wheel when engine runs.
The target wheel consists of 58 slots and 2 missing slots on 360 degrees CA (Crank Angle).
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Check signal waveform of CKPS and CMPS using a diagnostic tool. Specification : Refer to "DTC Diagnosis Guide" |
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Remove the engine room under cover. (Refer to Engine and Transaxle Assembly - "Engine Room Under Cover") |
| 3. | Disconnect the crankshaft position sensor connector (A). |
| 4. | Remove the installation bolt (B), and then remove the crankshaft position sensor. Tightening Torque : 7.8 - 9.8 N.m (0.8 - 1.0 kgf.m, 5.8 - 7.2 lb-ft) |
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
|
| •
| Apply the engine coolant to the O-ring. |
|
| •
| Insert the sensor in the installation hole and be careful not to damage. |
|
| 1. | Install in the reverse order of removal. |
Camshaft Position Sensor (CMPS)
Description and operation
Camshaft Position Sensor (CMPS) is a hall sensor and detects the camshaft position by using a hall element.
It is related with Crankshaft Position Sensor (CKPS) and detects the piston position of each cylinder which the CKPS can't detect.
The CMPS is installed on engine head cover and uses a target wheel installed on the camshaft. The Cam Position sensor is a hall-effect type sensor. As the target wheel passes the Hall sensor, the magnetic field changes in the sensor. The sensor then switches a signal which creates a square wave.
[Bank 1 / Intake]
[Bank 1 / Exhaust]
Schematic diagrams
Harness Connector
CMPS [Bank 1 / Intake]
CMPS [Bank 1 / Exhaust]
Repair procedures
| 1. | Check signal waveform of CKPS and CMPS using a diagnostic tool. Specification : Refer to "DTC Diagnosis Guide" |
|
| •
| DON’T remove the camshaft position sensor during engine running or right after engine stops, or a scald by the flowed out engine oil may occur. |
|
[Bank 1 / Intake]
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the camshaft position sensor connector (A). |
| 3. | Remove the installation bolt, and then remove the sensor (B). Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
[Bank 1 / Exhaust]
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the camshaft position sensor connector (A). |
| 3. | Remove the installation bolt, and then remove the sensor (B). Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
|
| •
| Apply the engine coolant to the O-ring. |
|
| •
| Insert the sensor in the installation hole and be careful not to damage. |
|
| 1. | Install in the reverse order of removal. |
Knock Sensor (KS)
Description and operation
Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage.
Knock Sensor (KS) is installed on the cylinder block and senses engine knocking. When knocking occurs, the vibration from the cylinder block is applied as pressure to the piezoelectric element. At this time, this sensor transfers the voltage signal higher than the specified value to the ECM and the ECM retards the ignition timing.
Specifications
Item
|
Specification
|
Capacitance (pF)
| 850 - 1150
|
Resistance (MΩ)
| R > 1
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal |
| 2. | Disconnect the knock sensor connector (A). 
|
| 3. | Remove the installation bolt (A), and then remove the sensor from the cylinder block. Tightening Torque : 18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 13.7 - 18.1 lb-ft) |
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
| 1. | Install in the reverse order of removal. |
Heated Oxygen Sensor (HO2S)
Description and operation
Heated Oxygen Sensor (HO2S) consists of the zirconium and the alumina and is installed on upstream and downstream of the Manifold Catalyst Converter (MCC).
In order that this sensor normally operates, the temperature of the sensor tip is higher than 370°C (698°F). So it has a heater which is controlled by the ECM duty signal.
When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.
Specifications
[Bank 1 / Sensor 1]
Item
|
Specification
|
Heater Resistance (Ω)
| Approx. 2.5 [20°C (68°F)]
|
[Bank 1 / Sensor 2]
Item
|
Specification
|
Heater Resistance (Ω)
| Approx. 3.0 [20°C (68°F)]
|
Schematic diagrams
Harness Connector
HO2S [Bank 1 / Sensor 1]
HO2S [Bank 1 / Sensor 2]
Repair procedures
| 1. | Turn the ignition switch OFF. |
| 2. | Disconnect the HO2S connector. |
| 3. | Measure resistance between HO2S heater terminals 2 and 5. [B1 / S1] Measure resistance between HO2S heater terminals 3 and 4. [B1 / S2] |
| 4. | Check that the resistance is within the specification. [Bank 1 / Sensor 1]
Item
| Specification
| Heater Resistance (Ω)
| Approx. 2.5 [20°C (68°F)]
|
[Bank 1 / Sensor 2]
Item
| Specification
| Heater Resistance (Ω)
| Approx. 3.0 [20°C (68°F)]
|
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the heated oxygen sensor connector (A). |
| 3. | Remove the heated oxygen sensor (B). Tightening Torque : 39.2 - 49.0 N.m (4.0 - 5.0 kgf.m, 28.9 - 36.1 lb-ft) |
| •
| Note that the SST (Part No. : 09392-2H100 or 09392-1Y100) is useful when removing the heated oxygen sensor. |
|
HO2S [Bank 1 / Sensor 1] 
HO2S [Bank 1 / Sensor 2] 
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
| •
| DON’T use a cleaner, spray, or grease to sensing element and connector of the sensor because oil component in them may malfunction the sensor performance. |
| •
| Sensor and its wiring may be damaged in case of contacting with the exhaust system (Exhaust Manifold, Catalytic Converter, and so on). |
|
| 1. | Install in the reverse order of removal. |
Accelerator Position Sensor (APS)
Description and operation
Accelerator Position Sensor (APS) is installed on the accelerator pedal module and detects the rotation angle of the accelerator pedal. The APS is one of the most important sensors in engine control system, so it consists of the two sensors which adapt individual sensor power and ground line. The second sensor monitors the first sensor and its output voltage is half of the first one. If the ratio of the sensor 1 and 2 is out of the range (approximately 1/2), the diagnostic system judges that it is abnormal.
Specifications
Accelerator Position
|
Output Voltage [V]
|
APS1
|
APS2
|
C.T
| 0.7 - 0.8
| 0.33 - 0.43
|
W.O.T
| 3.98 - 4.22
| 1.93 - 2.17
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Connect the diagnostic tool on the Data Link Connector (DLC). |
| 2. | Switch "ON" the ignition. |
| 3. | Measure the output voltage of the APS 3 and 6 at C.T and W.O.T. Specification : Refer to "Specification" |
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the accelerator position sensor connector (A). 
|
| 3. | Remove the accelerator pedal module after loosening the nut (A). 
|
| 1. | Install in the reverse order of removal. |
CVVT Oil Temperature Sensor (OTS)
Description and operation
Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.
By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work.
This system consist of the CVVT Oil Control Valve (OCV) which supplies the engine oil to the cam phaser or cuts the engine oil from the cam phaser in accordance with the ECM PWM (Pulse With Modulation) control signal, the CVVT Oil Temperature Sensor (OTS) which measures the engine oil temperature, and the Cam Phaser which varies the cam phase by using the hydraulic force of the engine oil.
The engine oil getting out of the CVVT oil control valve varies the cam phase in the direction (Intake Advance/Exhaust Retard) or opposite direction (Intake Retard/Exhaust Advance) of the engine rotation by rotating the rotor connected with the camshaft inside the cam phaser.
Specifications
Temperature [°C (°F)]
|
Resistance (kΩ)
|
-40 (-40)
| 125.53 - 136.70
|
-20 (-4)
| 63.89 - 71.23
|
0 (32)
| 26.83 - 30.07
|
20 (68)
| 11.13 - 12.48
|
40 (104)
| 4.89 - 5.50
|
60 (140)
| 2.32 - 2.61
|
80 (176)
| 1.17 - 1.32
|
100 (212)
| 0.63 - 0.71
|
120 (248)
| 0.37 - 0.41
|
140 (284)
| 0.22 - 0.25
|
160 (320)
| 0.14 - 0.16
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn ignition switch OFF. |
| 2. | Remove the oil pressure & oil temperature sensor. (Refer to - "Removal") |
| 3. | After immersing the thermistor of the sensor into engine coolant, measure resistance between the OTS terminals 1 and 4. |
| 4. | Check that the resistance is within the specification.
Temperature [°C (°F)]
| Resistance (kΩ)
| -40 (-40)
| 125.53 - 136.70
| -20 (-4)
| 63.89 - 71.23
| 0 (32)
| 26.83 - 30.07
| 20 (68)
| 11.13 - 12.48
| 40 (104)
| 4.89 - 5.50
| 60 (140)
| 2.32 - 2.61
| 80 (176)
| 1.17 - 1.32
| 100 (212)
| 0.63 - 0.71
| 120 (248)
| 0.37 - 0.41
| 140 (284)
| 0.22 - 0.25
| 160 (320)
| 0.14 - 0.16
|
|
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 3. | Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover") |
| 4. | Disconnect the oil pressure & oil temperature sensor connector (A), and then remove the oil pressure & oil temperature sensor (B). Tightening Torque : 14.7 - 21.6 N.m (1.5 - 2.2 kgf.m, 10.8 - 15.9 lb-ft) |
|
| •
| Install the component to the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
| •
| Apply the sealant to the sensor. |
| •
| Insert the sensor in the installation hole and be careful not to damage it during installation. |
|
| 1. | Install in the reverse order of removal. |
Oil Pressure Sensor (OPS)
Description and operation
It generates the oil pressure and temperature information (output voltage) to control the pump operation proportional control valve in variable oil pump system.
It measures the oil pressure and temperature discharged from the oil pump and transmits the pressure information to ECM. The ECM controls the proportional control valve to regularly keep the discharged pressure depending on RPM.
Specifications
Pressure
[kPa (kgf/cm², psi)]
|
Output Voltage (V)
[Vref = 5.0V]
|
50 (0.5, 7.25)
| 0.3
|
100 (1.01, 14.5)
| 0.5
|
600 (6.11, 87.02)
| 2.5
|
1100 (11.21, 159.54)
| 4.5
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Switch "OFF" the ignition. |
| 2. | Remove the oil pressure & oil temperature sensor. |
| 3. | Measure the between terminal oil pressure & oil temperature sensor. |
| 4. | Check that the resistance is within the specification. Specification : Refer to "Specification" |
|
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 3. | Remove the engine room under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover") |
| 4. | Disconnect the oil pressure & oil temperature sensor connector (A), and then remove the oil pressure & oil temperature sensor (B). Tightening Torque : 14.7 - 21.6 N.m (1.5 - 2.2 kgf.m, 10.8 - 15.9 lb-ft) |
|
| •
| Install the component to the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
| •
| Apply the sealant to the sensor. |
| •
| Insert the sensor in the installation hole and be careful not to damage it during installation. |
|
| 1. | Install in the reverse order of removal. |
Rail Pressure Sensor (RPS)
Description and operation
Installed on the delivery pipe, the Rail Pressure Sensor (RPS) measures the instantaneous fuel pressure in the delivery pipe. The sensing element (Semiconductor element) built in the sensor converts the pressure to voltage signal.
By using this signal, the ECM can control correct injection amount and timing and adjust the fuel pressure with the fuel pressure regulator valve if the target pressure is different from the actual pressure calculated by the RPS output signal.
Specifications
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Connect the diagnostic tool on the Data Link Connector (DLC). |
| 2. | Measure the output voltage of the RPS at idle and various engine speed.
Condition
| Output Voltage (V)
| Idle
| Approx. 1.2
| 1,500 rpm
| 2.0 - 2.2
| 6,300 rpm
| Approx. 2.8
|
|
| 1. | Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") |
| 2. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 3. | Remove the intake manifold. (Refer to Engine Mechanical System - "Intake and Exhaust System") |
| 4. | Disconnect the rail pressure sensor connector and then remove the sensor (A) from the delivery pipe. Tightening torque : 29.4 - 34.3 N.m (3.0 - 3.5 kgf.m, 10.8 - 15.9 lb-ft) |
|
| •
| Install the component to the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
| •
| Apply the sealant to the sensor. |
| •
| Insert the sensor in the installation hole and be careful not to damage it during installation. |
|
| 1. | Install in the reverse order of removal. |
Injector
Description and operation
The GDI injector is similar to a standard injector, but sprays fuel at a much higher pressure directly into the combustion chamber and has a swirl disc to get the fuel swirling as it exits the nozzle. This aids in atomization of the fuel.
The ECM controls both the feed circuits (high side) to feed voltage to the injectors and the ground circuits (low side) to energize the injectors. Also, the feed for 2 injectors comes from the same driver set. As the ignition coils are paired with cylinders (1-4 and 2-3), the injectors are also set up in pairs.
Specifications
Item
|
Specification
|
Coil Resistance (Ω)
| 1.19 - 1.31 [20°C (68°F)]
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn ignition switch OFF. |
| 2. | Disconnect injector connector. |
| 3. | Measure resistance between injector terminals 1 and 2. |
| 4. | Check that the resistance is within the specification. Specification : Refer to "Specification" |
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Release the residual pressure in fuel line. (Refer to Fuel Delivery System - "Release Residual Pressure in Fuel Line") | •
| When removing the fuel pump relay, a Diagnostic Trouble Code (DTC) may occur. Delete the code with the diagnostic tool after completion of "Release Residual Pressure in Fuel Line" work. |
|
|
| 3. | Remove the delivery pipe & injector assembly. (Refer to Fuel Delivery System - "Delivery Pipe") |
| 4. | Remove the connector (A) and fixing clip (B), and then separate the injector from the delivery pipe. 
|
| 1. | Install in the reverse order of removal. | •
| Do not reuse the injector fixing clip. |
| •
| Do not reuse the mounting bolt. |
| •
| Do not reuse the combustion seal (A). 
|
| •
| Be careful not to apply oil to the combustion seal. |
| •
| Do not reuse the O-ring (A), support disc (B), rubber washer (C). 
|
| •
| When replacing the rubber washer, the steal plate part should be faced the cylinder installation part and the rubber plate part should be faced the injector body part. |
| •
| Apply engine oil to the injector O-ring. |
| •
| When inserting the injector, be careful not to damage the injector tip |
| •
| Do not reuse the high fuel pipe. |
|
|
The injector combustion seal should be replaced new one to prevent leakage after removing the injector.
| 1. | Remove the combustion seal (A) with a wire cutter. 
| •
| Grip the sealing ring carefully, pull it to form a small loop and then cut it. |
| •
| Be careful not to damage the surface of the valve sleeve with the wire cutter. |
|
|
| 2. | Before the assembly of the sealing ring the groove must be cleaned using a clean cloth. Any coking of the injector sealing surface must be carefully removed with a brass-wire brush. 
The surfaces of the new sealing ring must be clean and free of grease. |
|
| 3. | Place the seal installing guide (B) (SST No. : 09353-2B000) on the tip of the injector not to damage the injector tip (A). Push the sealing ring (C) with thumb and index finger over the conical assembly tool until it snaps into the groove. The complete assembly must not take longer than 2 to 3 seconds. 
|
| 4. | To size the sealing ring the injector is first introduced into the sizing tool (A) (SST No. : 09353-2B000) and then pressed and at the same time rotated 180° into the sizing tool. 
|
| 5. | Pull the injector out of the sizing tool by turning it in the reverse direction to that used for the press-in process. | •
| Check that the seal ring has not been damaged during assembly to the injector and that no circumferential scratches are present. |
| •
| Do not reuse the combustion seal. |
| •
| The seal must be completely free of grease and oil. |
|
|
| 6. | Check the combustion seal (A) installation.
|
Ambient Temperature Sensor (ATS)
Description and operation
Ambient Temperature Sensor (ATS) is installed on the front-end module and senses the ambient temperature.
This sensor is exposed to the ambient air temperature in front of the radiator.
The ATS is a Negative Temperature Coefficient (NTC)-type sensor and its resistance is in inverse proportion to the temperature.
Specifications
Temperature [°C (°F)]
|
Resistance (kΩ)
|
-40 (-40)
| 841.2 - 1019.3
|
-20 (-4)
| 263.8 - 306.5
|
0 (32)
| 92.4 - 102.8
|
10 (50)
| 57.0 - 62.2
|
20 (68)
| 36.2 - 38.8
|
40 (104)
| 15.3 - 16.7
|
50 (122)
| 10.3 - 11.4
|
60 (140)
| 7.1 - 8.0
|
80 (176)
| 3.5 - 4.0
|
Repair procedures
| 1. | Turn the ignition switch OFF. |
| 2. | Disconnect the ATS connector. |
| 3. | Measure resistance between the ATS terminals 1 and 2. |
| 4. | Check that the resistance is within the specification.
Temperature [°C (°F)]
| Resistance (kΩ)
| -40 (-40)
| 841.2 - 1019.3
| -20 (-4)
| 263.8 - 306.5
| 0 (32)
| 92.4 - 102.8
| 10 (50)
| 57.0 - 62.2
| 20 (68)
| 36.2 - 38.8
| 40 (104)
| 15.3 - 16.7
| 50 (122)
| 10.3 - 11.4
| 60 (140)
| 7.1 - 8.0
| 80 (176)
| 3.5 - 4.0
|
|
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 2. | Remove the front bumper assembly. (Refer to Body (Interior nad Exterior- "Front Bumper Assembly") |
| 3. | Disconnect the connector (A), and then remove the ambient temperature sensor (B). 
|
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
| 1. | Install in the reverse order of removal. |
Purge Control Solenoid Valve (PCSV)
Description and operation
Purge Control Solenoid Valve (PCSV) is a solenoid valve and is installed on the surge tank and controls the passage between the canister and the intake manifold.
The evaporative gases gathered in the canister are delivered to the intake manifold when the PCSV is open by ECM control signal.
Specifications
Item
|
Specification
|
Coil Resistance (Ω)
| 14.21 - 14.79 [23°C (73°F)]
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn ignition switch OFF. |
| 2. | Disconnect PCSV connector. |
| 3. | Measure resistance between PCSV terminals 1 and 2. |
| 4. | Check that the resistance is within the specification.
Item
| Specification
| Coil Resistance (Ω)
| 14.21 - 14.79 [23°C (73°F)]
|
|
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the purge control solenoid valve connector (A). |
| 3. | Disconnect the vapor hoses (B). |
| 4. | Remove the purge control solenoid valve (C). 
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
|
| •
| Be careful of foreign material not to flow into the valve. |
|
| 1. | Install in the reverse order of removal. |
CVVT Oil Control Valve (OCV)
Description and operation
Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the exhaust valve in accordance with the ECM control signal which is calculated by the engine speed and load.
By controlling CVVT, the valve over-lap or under-lap occurs, which makes better fuel economy and reduces exhaust gases (NOx, HC) and improves engine performance through reduction of pumping loss, internal EGR effect, improvement of combustion stability, improvement of volumetric efficiency, and increase of expansion work.
This system consist of the CVVT Oil Control Valve (OCV) which supplies the engine oil to the cam phaser or cuts the engine oil from the cam phaser in accordance with the ECM PWM (Pulse With Modulation) control signal, and the Cam Phaser which varies the cam phase by using the hydraulic force of the engine oil.
The engine oil getting out of the CVVT oil control valve varies the cam phase in the direction (Intake Advance/Exhaust Retard) or opposite direction (Intake Retard/Exhaust Advance) of the engine rotation by rotating the rotor connected with the camshaft inside the cam phaser.
Repair procedures
| 1. | Remove the CVVT oil control valve. (Refer to Engine Mechanical System - "CVVT & Camshaft") |
| 2. | Install in the reverse order of removal. |
Variable Force Solenoid (VFS)
Description and operation
CVVT (Continuous Variable Valve Timing) system advances or retards the valve opening and closing timing of the intake or the exhaust valve in accordance with the ECM control, calculated by the engine speed and the load. The CVVT control causes a valve over-lap or under-lap between the intake valve and the exhaust valve. This improves fuel efficiency, reduces exhaust gases (NOx, HC) and enhances the engine performance, thanks to reduced pumping loss, internal EGR (Exhaust Gas Recirculation) release, improved combustion stability, and increased volumetric efficiency.The system consists of the CVVT Oil Control Valve (OCV), which receives the ECM PWM (Pulse With Modulation) control signal to change the path of the engine oil to supply to or discharge from the cam phaser, the CVVT Oil Temperature Sensor (OTS), which measures the temperatures of the engine oil, and the cam phaser, which varies the cam phasing by using the hydraulic force of the engine oil.The oil delivered from the CVVT oil control valve varies the phase angle of the cam, by rotating the rotor connected to the camshaft of the cam phaser and causing the camshaft to rotate in the direction of its engine running rotation (intake advanced / exhaust retarded) or the opposite direction (intake retarded/ exhaust advanced).
Variable Force Solenoid (VFS) [Bank 1 / Intake , Exhaust]
Specifications
Variable Force Solenoid (VFS) [Bank 1 / Intake , Exhaust]
Item
|
Specification
|
Coil Resistance (Ω)
| 5.2 - 5.9 [20°C (68°F)]
|
Operating Voltage (V)
| 10 - 16
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn ignition switch OFF and disconnect the battery negative (-) terminal. |
| 2. | Disconnect the variable force solenoid connector (A). |
| 3. | Remove the mounting bolt (B), and then remove the variable force solenoid(VFS) from the engine. Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
[Bank 1 / Intake] 
[Bank 1 / Exhaust] 
|
| •
| Install the component to the specified torque. |
| •
| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
| •
| Do not use any dropped variable force solenoid (VFS) valve. |
| •
| Note below cautions when installing variable force solenoid (VFS) valve. |
| 1) | After replacing the O-ring (A) of variable force solenoid (VFS) valve, apply engine oil on new O-ring (A). 
|
| 2) | Push variable force solenoid (VFS) valve up to the timing chain cover, and temporarily tighten the bolt. |
| 3) | Tighten the variable force solenoid (VFS) valve to the specified torque. |
|
| 1. | Install in the reverse order of removal. |
Fuel Pressure Control Valve (FPCV)
Description and operation
Installed on the high pressure fuel pump, the Fuel Pressure Regulator Valve controls the fuel amount flowing into the injectors in accordance with the ECM signal calculated based on various engine conditions.
Specifications
Item
|
Specification
|
Coil Resistance (Ω)
| 0.53 - 0.58 [20°C (68°F)]
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Switch "OFF" the ignition and disconnect the negative (-) battery terminal. |
| 2. | Disconnect the fuel pressure regulator valve connector. |
| 3. | Measure resistance between the fuel pressure regulator valve terminals 1 and 2. |
| 4. | Check that the resistance is within the specification. Specification : 1.09 - 1.21Ω [20°C (68°F)] |
|
| •
| The fuel pressure regulator valve cannot be replaced as a unit. Replace it as high pressure fuel pump assembly. (Refer to Fuel Delivery System - "High Pressure Fuel Pump") |
|
| •
| The fuel pressure regulator valve cannot be replaced as a unit. Replace it as high pressure fuel pump assembly. (Refer to Fuel Delivery System - "High Pressure Fuel Pump") |
|
Electric WGT Control Actuator
Description and operation
The Electric Waste Gate Actuator(EWGA) is installed on the turbocharger. EWGA operates vain in west gate turbocharger and controls the compressed air by PWM signal of ECM.
Specifications
EWGA Position Sensor [integrated into EWGA]
Position
|
Output Voltage [V]
|
Operating Angle [°]
|
Range [mm]
|
Mechanical Closed Position
| 4.8
| 1
| 0
|
Electrical Closed Position
| 4.2
| 12
| 1.8
|
Electrical Open Position
| 1
| 79
| 16
|
Mechanical Open Position
| 0.5
| 90
| 19
|
EWGA DC Motor [integrated into EWGA]
Item
|
Specification
|
Coil Resistance (Ω)
| 28.3 - 31.1 [20°C (68°F)]
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 2. | Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner") |
| 3. | Remove the intercooner inlet pipe. (Refer to Engine Mechanical System - "Intercooler") |
| 4. | Disconnect the EWGA connector (A). 
|
| 5. | Remove the shaft link assembly (B) after removing the C-ring (A). 
|
| 6. | Remove the EWGA after removing the bolts (A). Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| •
| When replacing the Electric WGT Control Actuator, perform the rod adjustment procedure. |
| •
| When install the electric WGT control actuator, do not reuse a C-Ring. |
|
| 1. | Install in the reverse order of removal. |
[Rod Adjustment Procedure Flowchart]
| 1. | Check that the waste gate turbo charger is coolenough to work. | •
| Use an electric fan to cool down fast. |
| •
| The cooling part (A) and the wind direction (B) areas follows. 
|
|
|
| 2. | Turn the ignition switch to OFF position. |
| 3. | Connect the diagnostic tool to DLC connector (16pin) under the driver side instrument panel. |
| 4. | Turn the ignition switch ON. | •
| Do not start the engine. |
|
|
| 5. | Select VIN or Vehicle on the initial screen. |
| 6. | Enter "Engine Control" menu after slelecting vehicleinformation (Vehicle model, Model year, Engine type)or entering the VIN number. |
| 7. | Select the "Current Data". |
| 8. | Without starting the engine, repeatedly turn theignition ON for 5 seconds and OFF for 5 seconds,and then check the "Adaptation value for lowmechanical stop of EWGA" on the diagnostic tool. Repeat this step until the amount of difference in theadaptation value from the previous cycle is below 0.05V. | •
| Do not start the engine. This is a crucial step toread the correct adaptation value. |
|
|
| 9. | Check that "Adaptation value for the lower mechanical stop of EWGA" is within the specified voltage value. |
| 10. | If the measured voltage value is not within the specified voltage value, adjust the EWGA rodlength. Otherwise, no further procedure is required. | (1) | Loosen the rod end lock nut (B) and remove the C-ring (A). |
| (2) | Adjust the rod end part (C) by rotating it clockwise (D) or counterclockwise (E) to satisfy the specification.
Adaptation valuefor the lower mechancalstop of EWGA (V)
| Adjusting directionof rod end
| Rod length variation(After adjustment)
| > 3.7V
| counterclockwise
| Longer
| < 3.5V
| clockwise
| Shorter
|
Turning angle
| Changing level of the adaptationvalue (V)
| 0.5 mm (180°)
| Approx. 0.1V
| 1 mm (360°)
| Approx. 0.2V
|
|
|
|
| 11. | Install the rod end (B) to the turbocharger lever (A) temporarily. Do not tighten the rod end lock nut (C) and C-ring (D). 
|
| 12. | Check the "Adaptation value for the lower mechanical stop of EWGA" after selecting "Current Data" menu. Turn the ignition switch ON/OFF repeatedly until the changing value of the "Adaptation value for the lower mechanical stop of EWGA" is within 0.05V. | •
| Turn the ignition switch ON/OFF. But hold 5 seconds at each IG ON or OFF state. |
|
|
| 13. | If the measured voltage value is not within the specified voltage value, repeat procedures 9 - 12 until the voltage value is within the specified voltage value. |
| 14. | If it is within the specified voltage value, install the rod end to the turbocharger lever. | (1) | Install the rod end (B) to the turbocharger lever (A) temporarily. |
| (2) | Fix the C-ring (C). 
|
|
| 15. | Install the 0.6mm filler gauge between EWGA lever (A) and rod end (B). 
|
| 16. | Tighten the lock nut (A). 
|
RCV Control Solenoid Valve
Description and operation
RCV (Recirculation Valve) Control Solenoid Valve is installed on the intercooler inlet pipe and operates the RCV actuator which controls the by-pass passage of the turbocharger compressor.When the throttle is closed, while the engine is running at cruise rpm (tip-out), the turbocharger boost pressure raises rapidly. The pressure wave strikes a compressor blades causing a knocking noise. To prevent this the ECM opens the recirculation valve which allows excessive boost pressure to vent back to the air cleaner side of the turbocharger compressor.
Specifications
Item
|
Specification
|
Coil Resistance (Ω)
| 28.3 - 31.1 [20°C (68°F)]
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn the ignition switch OFF. |
| 2. | Disconnect the RCV control solenoid valve connector. |
| 3. | Measure resistance between the valve terminals 1 and 2. |
| 4. | Check that the resistance is within the specification. Specification : Refer to "Specification" |
|
| 1. | Turn the ignition switch OFF and disconnect the battery negative (-) cable. |
| 2. | Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner Assembly") |
| 3. | Disconnect the RCV control solenoid valve connector (A). 
|
| 4. | Remove the vacuum hose (A). |
| 5. | Remove the RCV control solenoid valve (C), after loosen mounting bolt (B). Tightening Torque : 9.8 - 11.8 N.m (1.0 - 1.2 kgf.m, 7.2 - 8.7 lb-ft) |
|
| •
| Install the component to the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. In this case, use it after inspecting. |
| •
| Insert the sensor in the installation hole and be careful not to damage it during installation. |
|
Integrated Thermal Management Module (ITM)
Description and operation
Integrated Thermal Management Module (ITM) is a device that controls the coolant flow rate according to coolant temperature. At initial startup, the ITM quickly warms up the engine by controlling the flow of the coolant and this fast warm-up helps improve the fuel efficiency. When the coolant temperature rises, the ITM adjusts the cooling water temperature by controlling the valves to regulate the flow of coolant through a radiator or heater.
Components and components location
1. Integrated thermal management module (ITM)
2. Integrated thermal management module (ITM) O-ring
3. Heater pipe B
4. Heater water hose
| 5. Heater pipe A
6. Heater pipe A gasket
7. Water inlet fitting
8. Water inlet fitting gasket
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Remove the integrated thermal management module (ITM). (Refer to Engine Mechanical System - "Integrated Thermal Management Module (ITM)") | •
| A separate replacement of the ITM (Integrated Thermal Management Motor) is not possible. You should place the new ITM (Integrated Thermal Management Module) assembly to fix the problem. |
|
|
| 2. | Install in the reverse order of removal. |
| 1. | Turn the ignition switch OFF. |
| 2. | Connect the diagnostic tool to data link connector (DLC). |
| 3. | Turn the ignition switch ON. |
| 4. | Select the "Veichle, Model Year, Engine Specification, System". |
| 5. | Connect a diagnostic tool and then operate the integrated thermal management motor (ITM). |
| 6. | Confirm the Integrated thermal management motor (ITM) proper operation. |
| 7. | When the DTC occur, refer to the DTC guide. |
CVVD Actuator
Description and operation
CVVD(Continuous Variable Valve Duration) System is a device to control the optimum open and close timing according to the driving mode by changing the valve opening section.
[CVVD Actuator]
Specifications
Item
|
Specification
|
Type
| BLDC MOTOR
|
Operating Voltage (V)
| 9.1 - 16
|
Control Frequency (kHz)
| 10
|
Schematic diagrams
Harness Connector
Repair procedures
| 1. | Turn the ignition switch OFF, and disconnect the battery negative (-) terminal. |
| 2. | Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner Assembly") |
| 3. | Remove the high pressure fuel pipe. (Refer to Fuel Delivery System - "Fuel Line") |
| 4. | Remove the CVVD actuator (A) after loosening the mounting bolt. Tightening Torque : 18.6 - 24.5 N.m (1.9 - 2.5 kgf.m, 13.7 - 18.0 lb-ft) |
|
| •
| When installing the CVVD actuator the shaft gear do not fit properly, rotate the CVVD actuator in both directions and installing it naturally. (Do not impact when installating the component.) |
| •
| Do not damage to the component when installating the cylinder head cover oil seal (A). 
|
|
| •
| Install the component with the specified torques. |
| •
| Note that internal damage may occur when the component is dropped. If the component has been dropped, inspect before installing. |
|
| 1. | Turn the ignition switch OFF. |
| 2. | Connect the diagnostic tool to Data Link Connector (DLC). |
| 3. | Turn the ignition switch ON. |
| 4. | Select "Vehicle, Model Year, Engine, System". |
| 5. | Select "CVVD Intake Adaption". 
|
| 6. | Perform the "CVVD Learning" refer to the diagnostic tool. 
|
Special Service Tools
Tool Name / Number
Illustration
Description
Fuel Pressure Gauge09353-24100Used for measuring the p ...
Components and components location
Components Location1. Fuel Tank 2. Fuel Pump3. Fuel Fiter4. Fuel Pressure Regulator5. Canister6. Fuel tank air filter7. Fuel pump plate cover8. Fuel filler hose9. ...
Hyundai Elantra CN7: Engine Control System
