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Old 04-06-2005, 03:50 PM   #1
GetSideways
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Member#: 44665
Join Date: Oct 2003
Location: NY-RI
Vehicle:
03 wrx sedan
platinum

Default CEL's that go away???

Is it possible for the car to throw a CEL and then after a few hundred miles turn the CEL light off on its own (without me pulling the battery?) If so why would it do this? Has this happened to anyone else?


I've got an 03 with accessport stg 2 (93 oct.) ; headers; blitz sbc (16-17psi); full TBE; BOV.......
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Old 04-06-2005, 04:06 PM   #2
phantomsr
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WRB & Dust

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If you have the AP, why don't you pull the code?
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Old 04-06-2005, 04:13 PM   #3
Mulder
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15 WRX/05 GTO

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I agree, you should pull the code.
And the answer is yes. When a problem is detected, the ECU sets a code and turns on the CEL. As long as the problem continues to be seen by the ECU the light will stay on. However if it is no longer detected over several consecutive drive cycles, the light will go off although the code will remain stored in memory. The light going off does not mean that all is well and you can go happily on your way, it just means that the problem or condition is gone at least for the time being. It can always come back.
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Old 04-06-2005, 06:18 PM   #4
GetSideways
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i would pull the code but i dont have the port, just the old access ecu...
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Old 04-06-2005, 07:44 PM   #5
Mulder
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15 WRX/05 GTO

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Either go to Autozone and they will read it for free, or ask for help in your local forum. Lots of people have scanners.
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