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The PCM doesn't supply power to the coil's ,it supply's a ground . A fuse supply's B+ power to the coil's . Your vehicle has what is called coil on plug ignition system , a coil for each cylinder . Should have plug wires ,has a spark plug boot . IT is common for these coil on plug system's to fry the driver (transistor) inside the PCM ,if the spark plug gap becomes so worn that the spark can not jump said gap. It shorts inside the coil sending high voltage to the PCM driver . There are video's on youtube showing how to test a PCM driver circuit . Your coil has two wires , one should have B+ voltage an the other goes to the PCM . If your coil fried i look for a short to ground on the control side circuit . This video is for a ford 5.4 l V-8 coil on plug system ,same thing just 2 more coils . Ford 5 4 shorted coil primary winding and bad computer driver
The coil, injectors, and fuel pump get power from the ASD relay. If you have power to the coil but no spark from the coil, have you checked the pickup in the distributor ?
The pickup sends a signal to the engine computer and the computer fires the coil.
checked power the ignition coil should be a gr/or wire or so, its a 6cyl so the coil shoule have 4 wires, the rest is the coil driver wires which provide ground, connect one end of test light to power and probe the coil connector circuits.ligtdeal
Did yo check where it comes out of the coil or the other end of the wire that comes from the coil wire could be bad if you have an ohm meter connect it to wire only and see if there is high resistance in the wire
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