Engine Ignition

The electronic ignition (EI) system for the 2.3L engine consists of the following components:

• Ignition coil
• Spark plugs
• Spark plug wires
• Crankshaft position (CKP) sensor
• Camshaft position (CMP) sensor

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 powertrain control module (PCM).

Refer to ELECTRONIC ENGINE CONTROLS for removal and installation of the CKP sensor.

The ignition coil:

• is controlled by the PCM.
• fires 2 spark plugs simultaneously.

The spark plug:

• ignites the fuel and air mixture.

The spark plug wire:

• carries high voltage pulses from the ignition coil to the spark plugs.