Engine Performance problem
1999 Pontiac Grand Prix 6 cyl Two Wheel Drive Automatic 145000 miles
This car all of a sudden started running erratic then it will idle fine then back to erratic I have tried 2 seperate scanners they will not link with PCM I tried the scanners on my other vehicles and they worked fine I have checked all fuses and they are good possible PCM I have also checked all connections and they are tight.
have the same problem?
Tuesday, June 8th, 2010 AT 12:49 PM