what would cause the check engine light to stay on?

Asked by taft Jan 19, 2007 at 07:16 PM about the 1992 Ford Thunderbird

Question type: Maintenance & Repair

The check engine light stays on all the time, the engine runs great, car drives great out on the road. The check engine light stays on all the time.  The oil and fluids are all OK

3 Answers

140

replace the sensor

4 people found this helpful.
35

i have the same car..... is your gas tank full? mine goes on when im low on gas.... i know its kind of a dumb answer but you never know

1 people found this helpful.
115

it could be a bad oxygen sensor, if you don't have a drivebillity issues, get the trouble code with a scanner, a generic obd 2 scan tool won't work, or get a quality service manual

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