Originally Posted by iguanaman3
Are you sure they are separate coils? It the both fire together they are often the same coil and one cylinder is on the exhaust stroke. It allows half the number of coils for the engine. My '97 Aerostar 4.0 was that way.
You are describing the EDIS wasted spark ignition system. I have the Coil On Plug which I think is based off of that EDIS 8 system. with my COP ignition, there are 8 coils sitting directly above each of their respective cylinders connected to the boot. That is why I was wondering how this part of it works. I believe the EDIS wasted spark Coil packs are fired by only 4 pins that come from the PCM. Each pin fires 2 cylinders that are paired. So if one of those stops operating for whatever reason, neither of the coils for those two paired cylinders would fire. I know less about this COP system than I do the EDIS 8 coil pack system.
This seems like some **** Scotty would know about better than I would. Save me scotty
Im putting my car back to stock so I can sell it and get a mint condition mach 1 or a s197