engine light on

35

Asked by Jan 19, 2015 at 01:16 PM about the 2002 Ford Thunderbird Base Convertible

Question type: Maintenance & Repair

My 2092 T Bird's check engine light is on.  I have taken it to several places that have the
hand held computer checker and it won't show anything on it.  Everything is fine in as far
as the oil, gas cap, etc.  What would it be?

3 Answers

83,045

So is it the yellow light or the red light?

3 out of 3 people think this is helpful.
35

Well, I had to replace the battery today and the engine light went off.

83,045

Don't get excited yet, when you disconnected the battery you reset the ECM so it lost the codes so the light went off, it's just a temporary thing, once the ECM sees the problem it will turn the back on. But anyway that told me that it is an emissions control light, not an oil pressure light. I have had a few Fords not meet the protocol version on my tester, so I have to do a firmware update on my code reader then I could get the codes. You may have to go to a good shop to get it to read or you have a wiring problem in the OBD connective circuit.

1 out of 1 people think this is helpful.

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