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Random check engine light

 
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Old 08 Oct 2010, 09:30 pm
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Join Date: May 2010
Location: Atlanta, GA
Posts: 45
Default Random check engine light

Hi everybody!
This morning when I started my pt my check engine light came on. I turned off the car immediatlily and cycled the key on and off to check for any error codes, and there were none. I started it again, and the light came back on, but it drove perfectly normal like it always does. When I got home after school, (with the light still on), I disconnected the positive on the battery and left it for 15 minutes. When I reconnected it and started it, it ran fine and no more light. I think this is strange that it happened, but maybe because of the abnormal cold weather were having, something maybe got freaked out. Here in Westchester, CA, it normally gets down to about 59 degrees or so at night, but this morning it was a chilly 49 degrees. This may or may not been a factor, but it's my guess. Please feel free to express any ideas that you guys have on this for me.

Thanks alot!
-Hayden
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Old 18 Oct 2010, 08:05 pm
SCBluePT's Avatar
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Join Date: Sep 2010
Location: Winnsboro,SC
Posts: 2,706
Default Re: Random check engine light

Scammer alert! OK,he's been banned.

Last edited by SCBluePT; 18 Oct 2010 at 08:11 pm.
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Old 19 Oct 2010, 06:58 am
quicksilverdon's Avatar
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Join Date: Nov 2003
Location: Felton, Delaware
Posts: 20,501
Default Re: Random check engine light

Purely guessing, but when was last time plugs&wires were done?
Sometimes computer detects a missfire, but doesn't log an error code.
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Old 19 Oct 2010, 03:06 pm
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Join Date: Sep 2001
Posts: 27,743
Default Re: Random check engine light

When you ran the fault check and had none, did it say "done" ?
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