Ignition Coil Assembly

The ignition coil assembly used on this engine integrates the 4 coils and the module within a single sealed component.

The ignition coil has the following circuits:

• An ignition voltage circuit
• A ground
• 4 ignition control circuits

The ECM controls the individual coils by transmitting timing pulses on the ignition control circuit of each ignition coil to enable a spark event.

The spark plugs are connected to each coil by a short boot. The boot contains a spring that conducts the spark energy from the coil to the spark plug. The spark plug electrode is coated with platinum for long wear and higher efficiency.