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2002 Z-28 Camaro

This is a discussion on 2002 Z-28 Camaro within the General Help forums, part of the LSx Technical Help Section category; I am having a random missfire code pop up at high RPM'S.it only throws random misfire cylinder #8 at high ...

  1. #1
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    2002 camaro Z-28

    2002 Z-28 Camaro

    I am having a random missfire code pop up at high RPM'S.it only throws random misfire cylinder #8 at high rpms.when rpm's reach about 6000 it throws code.changed plugs ,wires,coils. dont know what else to do.can anyone help . thanks

  2. #2
    Smiles for 9.5 Years cammed goat's Avatar
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    2004 GTO M6

    Have you checked the harness that connects to the coil on cyl #8? That connector could be loose or on the way out. How many miles do you have?

  3. #3
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    2002 SS

    Had the same thing happen 3 weeks ago when I had the plugs changed. the #8 wire wasn't on properly. Made a U turn and they reached in there and snugged it on. Code gone and happy me.

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    checked and replaced harness to coils ,checked plugs wires and every thing.only happens at over 6000 rpms.

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    Also try swapping coils and see if the codes jumps to the other. If it doesn't then it a bad injector.

  7. #7
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    changed injectors and coils also

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