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Originally Posted by faithgrandam
i recently had trac off light on my 2000 grand am come on code said it was an oxygen sensor fixed that put in new plugs boots coil packs ans housing still jerks when excellerating after you have coasted and misses when in reverse at times the car has now started cutting off when turning any suggestions...the car has no warning lights on and will not show a code when hook to a computer
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Welcome to AF !
If your trac off light was on, it has nothing to do with the O2 sensor(s).
Sounds like a speed sensor going out in one of your 4 hub bearings.
Does it do this if you push the trac off button above the radio, try if you havnt and see if the trouble goes away.
You can also manualy test the speed sensors.
- Unplug the sensor and using an ohmmeter measure the resistance. It should be around 1000-1200ohms.
If it drops way down(readings jump around) when turning the hub then that sensor is most likely going out. A typical problem on GA's.
Also wouldnt hurt to use some injector cleaner if you dont regularly use any. Helps keep the injectors from causing misfiring.
Hope that helps