Vehicle Specific Ignition System

The ignition system consists of the:
^ Crankshaft Position (CKP) sensor
^ ignition coil
^ spark plug wire
^ spark plugs

The ignition system is:
^ an Electronic Distributorless Ignition System (EDIS) controlled by an electronic engine control integrated into the Powertrain Control Module (PCM).
^ set at 10 degrees Before Top Dead Center (BTDC) for base timing and it is not adjustable.

The crankshaft position sensor:
^ is a variable-reluctance sensor.
^ senses a missing tooth on crankshaft damper pulse ring.
^ generates a crankshaft position signal which is sent to the powertrain control module. The powertrain control module counts this signal for engine rpm and spark advance.

For additional information on the CKP sensor, refer to Computers and Control Systems.

The ignition coil:
^ changes low voltage pulses from the powertrain control module to high voltage pulses.
^ has two transformers.

Spark plug wires:
^ carry high voltage pulses from the ignition coil to the spark plugs.

The spark plugs:
^ change high voltage pulses to spark at gap which ignites fuel and air mixture.
^ have a platinum-enhanced active electrode for long life. The active electrode is different for LH and RH sides.
^ have replacements with both electrodes platinum-enhanced so they can be used on either side.