All,
I'm running out of idea's. It all started with a cam sensor code, intake manifold leak (non-internal) and a #3 misfire. I am now trying to fix the #3 misfire. So far I have replaced the wires and plugs and swapped the coils. Next I was going to check for spark and swap fuel injectors.
Am I missing anything else? I thought of using a 3M injector cleaner (rec. by mechanic) but I am fearing it will kill the O2 sensor and catalytic.
Please help
Thanks, mazzov
1996 3.1 lumina 115k