Hyundai Elantra HD: Heated Oxygen Sensor (HO2S). Repair procedures - Engine Control System - Engine Control/Fuel System - Hyundai Elantra HD 2006–2010 Service ManualHyundai Elantra HD: Heated Oxygen Sensor (HO2S). Repair procedures

Component Inspection

1.
Disconnet the HO2S connector.
2.
Measure resistance between HO2S heater terminals 5 and 6 [B1/S1].
Measure resistance between HO2S heater terminals 3 and 4 [B1/S2].
3.
Check that the resistance is within the specification.
Specification: Refer to SPECIFICATION.

Knock Sensor (KS). Description and Operation
Function And Operation Principle Knocking is a phenomenon characterized by undesirable vibration and noise and can cause engine damage. Knock Sensor (KS) senses engine knocking and the cylin ...