2012 Limited with 3.5 154,000 miles
Engine developed a miss fire on #1 replaced plugs, coils and injectors. Still had misfire.
sent out pcm. Get new pcm and replaced with another set of coils… still has misfire.
Start ohm testing wires and find that I’m getting readings on multiple wires on each coil with all the coils and injectors disconnected, disconnect the engine to ignition harnesses and the issue goes away…. Test the ignition harnes and I have 5 wires that ohm test together.
In desperate need of a wiring diagram!
Any help greatly appreciated.