Having problems with your 2002 Pontiac Grand Prix ?
2002 grand prix runs rough,dies service engine
\015 2002 grand prix runs rough,dies service engine soon light on code reader says it is running lean\015
Sounds like you have a vacuum leak, check all the vacuum hoses and replace any broken or kinked ones, also check around the intake manifold gasket for leaks. any air leaks after the air flow meter creates 'un-metered' air which inturn will make the car run rough and stall, hope this helps
Mine did this, it was the mass air flow sensor. $140 at autozone, 2 tamper proof torque screws and a plug. Dealer tried to charge me $430 for this repair.
Repair Help & Product Troubleshooting for 2002 Pontiac Grand Prix
Tips for a great answer:- Provide details, support with references or personal experience .
- If you need clarification, ask it in the comment box .
- It's 100% free, no registration required.