Having problems with your 2002 Pontiac Grand Am ?
Got a 2002 grand am 2.4L,it starts fine but i have no power when i try to move it,i was thinking maybe the cat. converter was pluged or the O2 sensor is shot,any ideas before i replace anything?
Check your temp before the cat and after it should be at least 100 degrees hotter after the cat if not the cat is shot. hookup a scan tool and check your O2 sensor voltage it should bounce around from 200mv up to around 850mv. good luck.
Repair Help & Product Troubleshooting for 2002 Pontiac Grand Am
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