Ignition Coil: Description and Operation

Coil On Plug

Coil On Plug:

The Coil On Plug (COP) ignition operates similar to standard coil pack ignition except each plug has one coil per plug. COP has three different modes of operation: engine crank, engine running, and CMP Failure Mode Effects Management (FMEM).

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.