Coil On Plug

The coil on plug (COP) (Fig 1) 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).

Fig 1: Identifying Coil On Plug (3.0L Escape, 3.0L 4V Taurus, Thunderbird, LS6/LS8, 4.6L Mustang, Crown Victoria/Grand Marquis, Town Car, 4.6L Explorer/Mountaineer, 4.6L/5.4L/6.8L E/F Series, Aviator, Expedition, Navigator & Excursion)

Courtesy of FORD MOTOR CO.