3.8L mustang misfire help?
Im working on my friends 2002 3.8L v6 mustand that has a cylinder 3 misfire code and runs really rough. He put new plugs, wires, and a coil on it and same issue. I started unplugging wires off the coil when it was running and cylinders 3 and 4 are getting no spark out of the coil. Cylinders 3 and 4 are matched pairs also. My next step was the ohm the wires from the coil to the pcm but I wanted to hear ideas from other people. I have heard of a couple pcm's going bad causing a misfire and a bad crank postion sensor also but no code for that. The codes im getting are a p0351, p0352, p0353, p0316, and a p0303 but I think most of them are from me unhooking the wires when it was running.
When I ran the koer self check with the engine running the p0352 code comes up with a p0505 iac code.
Last edited by trx450er; 02-01-2010 at 09:16 PM.