i have a few issues going on with my 2002 pontiac grand prix my security light and my check engine light are on and have been on since i had the cat replaced.
when the weather is really cold the engine will start off ruff but will start and stay on till i shut it off. but the car has stalled out on me 3 times. what i need to know is how do i fix this issue and keep it from happening again.
Have you had it scanned? What do the codes say. The computer tells all.
Sounds like an O2 sensor . Should throw a code if it is.
Search Pontiac Grand Prix Questions
Pontiac Grand Prix Experts