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  1. #1

    Stage 3 svho misfire at 8k rpm

    My engine was replaced under warranty and now after breaking it in, Iíve realised there is a misssfire starting at 8000rpm and then gets worse. I need to check my afrs and will pull the rocker cover to check the timing.

    Compression is fine across all 4 pots (140psi) , I changed the plugs for new ones (looked fine though - nice dry light brown), I drained the fuel tank and put in fresh fuel.

    I have reflashed both the 17psi and 19 psi map and it still does the same thing. There are no error codes but exhaust water temp does shoot you to 76degrees when the mid fire happens.

    Just wondering if anyone has come across a similar issue.

  2. #2
    Site Admin Green Hulk's Avatar
    Join Date
    Apr 2005
    Morgan City, LA
    Check your intercooler to make sure it's not leaking.

  3. #3
    I’m going to try that next. I hope not as it was a brand new Fizzle in there

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