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Answered 2006-11-28 19:32:59

I have a 1995 Intrepid that has been doing the same thing. My brother, who is a mechanic, told me that it is most likely a faulty oxygen sensor. He said that there's no urgency to get it fixed because it doesn't affect how the car runs. My check engine light has been popping off and on for several months and I haven't noticed any change in the performance of my car. For me it was two oxygen sensors (out of four). I was told that some cars do not start when the sensors go; therefore, I did not want to take a chance, so I ended up replacing them (I did get a deal:the sensors were $75 each; and a friend mechanic put them in for free). Oxygen sensors do affect the performane of the car. The o2 sensors get to better gas mileage by allowing the correct fuel/air ratio I have a 99 Intrepid and the repair guy at the dealership said that the check engine light will come on, but after the car is turned off and on a few times the computer resets itself and it will go out. The check engine light comes on for a lot of different reasons, mine was idle was low (due to a leak in the lower intake gasket). Hope this was helpful

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