Hyundai Elantra HD: Description and Operation
Description
Ignition timing is controlled by the electronic control ignitiontiming
system. The standard reference ignition timing datafor the engine operating
conditions are pre-programmed inthe memory of the ECM (engine control module).
The engine operating conditions (speed, load, warm-upcondition, etc.)
are detected by the various sensors.Based on these sensor signals and the ignition
timingdata, signals to interrupt the primary current are sentto the ECM. The
ignition coil is activated, and timing iscontrolled.
