Engine Ignition

The electronic ignition system is a coil-on-plug ignition system. The coil-on-plug ignition system consists of the following components:

• crankshaft position (CKP) sensor
• ignition coils
• spark plugs

The CKP sensor:

• is a variable reluctance sensor.
• is triggered by a 36-minus-1 tooth trigger wheel mounted on the crankshaft.
• provides base timing and crankshaft speed (RPM) to the powertrain control module (PCM).

The eight separate ignition coils:

• change low voltage signals from the PCM to high voltage pulses
• produce the high voltage pulses to the spark plugs.
• are connected directly to each spark plug.

The spark plugs:

• change high voltage pulses into a spark which ignites the fuel and air mixture.
• originally equipped on the vehicle have a platinum-enhanced active electrode for long life.