Pontiac Grand Prix
Grand Prix GT
Grand Prix GTP

What is wrong when my 1999 Pontiac grand prix gtp loses rpms and stalls out only once the engine gets warm?

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Wiki User
2006-12-12 11:50:20

i finally got it fixed it was the mass air flow sensor of all

things but only after spending alot of money replacing parts did i

find this out (i wasnt getting an error code) but maybe this post

will help someone in the future

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