Thread: #3 cylinder misfire

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  1. #1 #3 cylinder misfire 
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    2000 GTP CEL showed misfire in cylinder #3. Plug had a crack in it so I replaced it, all good until a week later and the same problem, same cylinder again. Also have an O2 sensor code now. Could these be related? why would it only affect one cylinder? Maybe the coil pack? I'm goint to switch it with another and see if the problem follows. Any other ideas? Using Autolite XP iridium plugs
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  2. #2 Re: #3 cylinder misfire 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    O2 code could be a lean or rich condition from the misfire, but I don't know what number the code is.


    I'd start with the coil moving or swap a wire around. Plug wire could be cracked or damaged on the inside.

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  3. #3 Re: #3 cylinder misfire 
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    code is 0141 so its downstream
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