F 150 Heritage 2WD Pickup V8-4.6L SOHC VIN W (2004)
Ignition Coil: Description and Operation
COIL ON PLUG
Coil On Plug
The coil on plug (COP) (Figure 65) 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).
