2003 Pontiac Grand Am Q&A
2003 Pontiac Grand Am Question: Check Engine Light
I can't figure out why the check enging light didn't go out after I replaced the 02 sensor and that was the only code that came up for the light being on, So I changed the 02 sensor and after about 5 minutes of driving the light popped back on so I did the dianostic again and the same code came up so now I'm lost. - sts_rider
What brand of oxygen sensor? sometimes the aftermarket sensors won't quite send the right signal maybe try a stock sensor - hemicuda
Illumination of the Check Engine Light may be the result of a loose or worn gas cap.
...will not idle below 3500rpm and will not shift into overdrive but at times it will run normal check engine light is off hooked up a scanner no codes any ideas?
Ok i have a 1996 pontiac grand am the ets off light is on the the check engine light is on. we hooked it up to a computer and it said the egr value needed repalcing. we took egr...
i was driving down the freeway and noticed the fan was running, i looked down and the sevice engine light came on and 10 miles later when i got home the temp. gauge had not moved at all with a 36 m...
The oxygen sensor can fail causing Check Engine Light illumination and the engine to run rich (burn more fuel than normal).