Engine Ignition

ENGINE IGNITION

The electronic ignition (EI) system is a coil-on-plug ignition system. The coil-on-plug ignition system consists of the:
- camshaft position (CMP) sensor.
- crankshaft position (CKP) sensor.
- coil on plug.
- spark plugs.

The CMP sensor:
- is a variable reluctance sensor.
- is mounted in the valve cover.
- provides camshaft rotational location information to the PCM.

The CKP sensor:
- is a variable reluctance sensor.
- is mounted on the engine front cover.
- is triggered by a 36-minus-1 tooth trigger wheel located on the crankshaft pulley and damper.
- provides ignition timing and crankshaft speed (rpm) to the PCM.

The coil on plug:
- is controlled by the PCM.
- fires 2 spark plugs simultaneously.

The spark plug:
- ignites the fuel and air mixture.