Thread: i have a cylinder #1 and #5 intermediate misfire

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  1. #1 Re: i have a cylinder #1 and #5 intermediate misfire 
    GT Level Member Will5600's Avatar
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    is any one selling injectors for a 99 gtp
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  2. #2 Re: i have a cylinder #1 and #5 intermediate misfire 
    Donating Users mystic231's Avatar
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    If you have the original wires on it change them. Old wires can "crossfire" and if it's a '99 it's time anyway. #1 and #5 run in the same plastic loom across the front of the valve cover. You can get OEM wires from ZZP for $35 or it's a dandy time to upgrade.

    Next, change your coils. They run about $25 each. I would be surprised if it was an injector problem.
    Sounds like a problem I had with my F350 SuperDuty. Ran fine from 0-37 miles per hour. Anything over that and the truck bogged and kicked. It would NOT set a code. Turned out to be the #6 coil (It was a V10). Changed the coil and problem solved.
    '98 Bright Red GT 278,000 miles and counting...
    '02 Galaxy Silver GTP GMPP Suspension, F Body front brakes, TDC FWI intake, Ported M90, Intake, and Throttlebody, Overkill PCM
    '02 Bright Red GT
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