The engine light came on on my pp 4DR Pontiac Bonnevile with a 3.8 V6 engine.It keeps stalling out at very low speed or when idling.

Asked by Nov 01, 2015 at 12:16 PM about the 1999 Pontiac Bonneville 4 Dr SLE Sedan

Question type: Maintenance & Repair

Trying to figure out whats wrong with my 99 Pontiac Bonneville(3.8 V6).the check engine light came on & it keeps stalling out at low speed or when idling.

1 Answer

395

Lots of possibilities here without more info. Have it scanned by someone who actually knows what they are doing and not to just erase the codes. Please report back. I just fought one of these with a 0.02 volt difference in ground potential between the ECM and the battery ground. Your problem may require a knowledgeable technician.

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