Question about 1991 Pontiac Firebird

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Wont start i have a 1991 pontiac firebird formula that will spit and sputter you have to play with the gas petal to get it to stay running i have  already replaced the fuel filter and it is still doing this

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  • yadayada
    yadayada May 11, 2010

    Have you tested the fuel pressure?

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  • 426 Answers

Have you done a vacuum leak test?Around the injector seals is a place to start Do you have a manifold vacuum gauge and if so what is the reading that your getting?another thing to check would be the idle bypass and pcv are clear/unblocked and operating correctly.Does this happen wether engine hot or cold?or both

Posted on Oct 14, 2008

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