Ignition Coil: Description and Operation

Coil On Plug:

OPERATION
The Coil On Plug (COP) works in the same manner as a standard coil pack. The COP Integrated Ignition (EI) system fires only one spark plug instead of two like standard coil packs. Since there is one coil on each spark plug, the coils will fire the spark plugs on the compression stroke only. Coils no longer fire spark plugs on the exhaust stroke.

FEATURES
The Coil on Plug:
- Changes low voltage signal from the PCM to high voltage pulses.
- Produces the high voltage pulses to the spark plugs.
- Connects directly to the spark plug.