Engine Ignition

ENGINE IGNITION

The electronic ignition (EI) system consists of the following components:
- Ignition coil
- Spark plugs
- Spark plug wires
- Radio ignition interference capacitor

The ignition coil:
- is controlled by the powertrain control module (PCM).
- each ignition coil fires two spark plugs.

The spark plug:
- ignites the fuel and air mixture.
- is different for the RH and LH sides.

The spark plug wire:
- carries high voltage pulses from the ignition coil to the spark plugs.

Refer to Computers and Control Systems for information on ignition coil matched pairs.