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by sPiNdLe on March 17th, 2009
The mechanic could have left a cap or plug loose in the engine. I knew someone who had an oil change, then the check engine light came on and the mechanic wanted $90 just to see that the code was that made it come on. After checking the caps on things the radiator cap was not fully tightened, the oil fill was barely on and the oil dipstick was not all the way in. After we checked and properly closed things the light was gone when the car was started again.
by jlion@eircom.net on June 25th, 2008
COULD BE FAULTY OIL SWITCH BUT CHECK THIS OUT BEFORE DRIVING AS THIS COULD BE A SERIOUS PROBLEM
by Someguy on April 19th, 2008
The O2 sensor could be bad.
by Borderlinux on April 19th, 2008
The UAW
by the big boo on April 19th, 2008
If everything else seems to be okay with your car, it could be the sensor (could have been damaged by the mechanic, but you can't prove that). Unfortunately, replacing the sensor can cost some $$.
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You're reading What would make the check Engine light come on after an oil change is done. The car is a 2002 Sunfire SE.
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