Thread: Misfire Code

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  1. #1 Misfire Code 
    GT Level Member Hurricane87's Avatar
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    Getting the generic P00300. The solution offered by the parts store was to replace all the wires and coils (the plugs are less than two months old). I have a set of wires left over from my Monte Carlo, but I am not spending $500 to replace all the coils for no reason.

    Is there any way to get this narrowed down?
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  2. #2 Re: Misfire Code 
    Killa Bee Scottydoggs's Avatar
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    cat could be clogged up.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  3. #3 Re: Misfire Code 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    A live data scan tool that can read each cylinder for misfires is what you need. This way you can figure out what cylinders are causing the P0300.

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  4. #4 Re: Misfire Code 
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    Quote Originally Posted by Fivefingerdeathpunch View Post
    A live data scan tool that can read each cylinder for misfires is what you need. This way you can figure out what cylinders are causing the P0300.
    OT here but do you have a recommendation for one? preferrably not one requiring one of them fancy schmancy phones and reasonably priced
    08 grand prix NA3800
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  5. #5 Re: Misfire Code 
    Turbo is the way to go. Fivefingerdeathpunch's Avatar
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    I believe this one by Bosch does but they also sell a few different version with more features of this style scan tool. I would do some reading and maybe watching reviews to get a better idea.

    Amazon.com

    I'm spoiled because I have a small handheld scanner for quick stuff and then I use my laptop with tuner software if I really need to figure something out. I haven't looked real hard at what all these scan tools do now. Pretty much something in the $100-200 range should be able to read codes, do live data and also do ABS functions now.

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  6. #6 Re: Misfire Code 
    GT Level Member Hurricane87's Avatar
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    Misfire code disappeared when seven others appeared. All those are fixed, and no reocurrence.
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