06 f-150 5.4 with cop coils …where does power come from there is no fuses blown but no 12 volts to coils
The PCM supplies power to the individual coils. There is a PCM Power Relay and fuse. You won't see power to the coils unless the engine is being cranked or is running. A signal is required from the Crank sensor to tell the PCM when to fire which coil.
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