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Thread: Stock tune request: 1999 GP/auto/3.8L NA

  1. #1
    Tuner in Training
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    Stock tune request: 1999 GP/auto/3.8L NA

    I?m looking for a stock tune for a 1999 Grand Prix to diagnose a recurrent EGR code after new sensors have been installed. I?d like a tune that had the TSB ECM flash from the dealer
    1999 Corvette

  2. #2
    Advanced Tuner ZeroBoostBuick's Avatar
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    Aug 2008
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    S.W. Ontario Canada
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    The TSB I found was for 2002 3800 L36 cars.

    The TSB claims the dealer re-flash is to allow the EGR test to be read with other non-tech2 scanners.

    L36-EGR-TSB.png


    Sorry I can't help you cause I don't know if the Stock tune of the 2002 Grand prix (or the 98 Regal) I owned had that dealer PCM re-tuning done.