I have a 1999 grand prix gtp that Hesitate When your getting on freeway,i have to give it more gas.

Asked by Sep 15, 2015 at 03:47 PM about the 1999 Pontiac Grand Prix 2 Dr GTP Supercharged Coupe

Question type: Maintenance & Repair

Engine light will come on if i don't give
more gas also.

3 Answers

1,475

go to a auto part store and see what codes your computer has

The only code tha pop up was the massive air flow which i change

1,475

air filter clean and look at the boot to the intake make sure it is tight or a vacuum leak

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