Engine Ignition

ENGINE IGNITION

Coil Terminal-To-Cylinder Relationship:

The electronic ignition (EI) system consists of the following:
- Crankshaft position sensor
- Ignition coil
- Spark plug wires
- Spark plugs

The crankshaft position 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 base timing and crankshaft speed (rpm) to the powertrain control module (PCM).

The ignition coil:
- is controlled by the PCM.
- fires 2 spark plugs simultaneously.
- is mounted on the RH valve cover.

The spark plug wires:
- Carry high voltage pulses from the ignition coil to the spark plugs.

The spark plugs:
- ignite the fuel and air mixture.
- are platinum enhanced for long life.