BAD Misfires, Need Help with this one!
03-31-2010, 07:49 PM
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BAD Misfires, Need Help with this one!
Ok, last week wednesday I put in some fresh Autolite XP's, gapped at .032. Come friday I have a cylinder #2 misfire code come up. From wedneaday to friday I never went WOT on the car. Pull the plug to see this.
I put in a different set of plugs. Now today I got WOT on it and misfires bad, engine light flashing, I instantly let off, light stops flashing and I just take it easy on the car. I get home, check all the plugs, all were fine. I take it for one more spin, 2nd gear it does it again, this time cel stays on. I go to advanced to use their code reader, the guy that read the codes said I had misfires in every cylinder, I didn't see the code(s) so I don't know if it was a random misfire or if every dtc for all the cylinders came on. My friend is doing a compression check for me tommorrow. Hopefully I will not be having to do a engine rebuil;d with only 14,000 plus miles. Plus, it only happens with my tune since I have the trifecta hide a tune.
I put in a different set of plugs. Now today I got WOT on it and misfires bad, engine light flashing, I instantly let off, light stops flashing and I just take it easy on the car. I get home, check all the plugs, all were fine. I take it for one more spin, 2nd gear it does it again, this time cel stays on. I go to advanced to use their code reader, the guy that read the codes said I had misfires in every cylinder, I didn't see the code(s) so I don't know if it was a random misfire or if every dtc for all the cylinders came on. My friend is doing a compression check for me tommorrow. Hopefully I will not be having to do a engine rebuil;d with only 14,000 plus miles. Plus, it only happens with my tune since I have the trifecta hide a tune.
03-31-2010, 10:36 PM
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The picture looks like something bent the plug. That would Def give you a misfire code on that cylinder. Dont know about after you swap your plugs out. Perhaps you have something bad in your ignition harness, or fuel injectors/harness.
04-01-2010, 04:48 AM
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Yeah, the bent plug just hopefullly isn't a sign that it chunked a piston. I had that problem alot when I had a grand prix gtp, I already know its not fun having to yank the engine and replace the piston. I'll have to get scanned and see what that tells me on my fuel trims, make sure its not a fueling problem.
04-01-2010, 05:09 PM
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thicker crush gaskets?or doubled up?fuel filters? are the gaskets in the spark plug boots messed up or are there extras in there?? lol my buddys celica had that problem and ran on 3 cylinders for quite a while...
04-01-2010, 07:34 PM
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I did take a good look over the coil packs, checked them to make sure there was no visible damage, fuel pressure on rpd seems to be ok, I should check it again at wot but will wait til I get ahold of someone to scan it for me to see if there is anything wrong there.
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