3.8L mustang misfire help? - F150online Forums


3.8L mustang misfire help?


Old 02-01-2010, 10:14 PM
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Join Date: Nov 2008
Posts: 53
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 10:16 PM.
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Old 02-02-2010, 01:40 AM
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Join Date: Jul 2007
Location: London, ON Canada
Posts: 946
Check out www.v6power.net tons of v6 stang help there. I think there is even a sticky on the misfire issue.
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