Vehicle Specific Ignition System

The Electronic Ignition (EI) system is a coil-on-plug (COP) ignition system. The COP ignition system consists of the following components:
^ crankshaft Position (CKP) sensor
^ camshaft Position (CMP) sensor
^ ignition coils
^ 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 mounted on the crankshaft.
^ provides base timing and crankshaft speed (rpm) to the Powertrain Control Module (PCM).

Refer to Computers and Control Systems for removal and installation of the crankshaft position sensor.







The camshaft position sensor:
^ sends the powertrain control module (PCM) a signal indicating camshaft position used for fuel synchronization.

Refer to Computers and Control Systems for removal and installation of the camshaft position sensor.







The six separate ignition coils:
^ convert low voltage signals from the powertrain control module to high voltage pulses.
^ produce the high voltage pulses for the spark plugs.
^ are connected directly to each spark plug.

The spark plugs:
^ convert a high voltage pulse into a spark which ignites the fuel and air mixture.
^ originally installed on the vehicle have a platinum-enhanced active electrode for long life.