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
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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
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.
Attachment 92632
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.