cyl#4 misfire
Hey I have a 2000 ranger with a 3.0l in it and I am getting two codes. P0304 and p0402. The truck runs but misses bad on #4 cyl. Checked and there is spark. Havent checked fuel injector yet but I would think that would toss a different code. New plugs, wires and a coil pack did nothing. I checked the old plug and it had hard black carbon covering the electrode. Put a new egr in and nothing. Anyone have any ideas here? I did pull the wire from the plug and no dif in the idol at all. Seems like its not firing to that cyl, but there is spark...??? could this be a timing issue?Any help would be awesome. Thank you
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