LT1-LT4 Modifications 1993-97 Gen II Small Block V8

check engine light

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Old Jul 11, 2006 | 01:31 AM
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Default check engine light

while i drive the light stays off but when i get on the freeway for about 5 mins the light comes on, is this a bad o2 sensor?
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Old Jul 11, 2006 | 01:36 AM
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i dunno. stop at auto zone and have your codes pulled.
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Old Jul 11, 2006 | 01:39 AM
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thats what i was thinkin but as soon as i turn the car off it goes away..
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Old Jul 11, 2006 | 01:43 AM
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its not supposed to stay lit when your car is shut off.......




whatevers in there is stored until its cleared. stop and have it pulled.
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Old Jul 11, 2006 | 01:45 AM
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sorry i ment it went away after i turned it off and turned it back on..i could drive and it would come back on when i got on the freeway then i get off turn the car off then back on and drive and its gone untill i get back on the freeway
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Old Jul 11, 2006 | 01:47 AM
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well whether it comes on and stays or leaves till chritsmas, its there until its cleard. stop and have it pulled. its free.
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Old Jul 11, 2006 | 01:57 AM
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ok thank you, ill go by there tommorrow , i need to get a tranny mount anyways
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Old Jul 11, 2006 | 01:59 AM
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awesome, let us know what they say. mine does it, and its always the 02 sensor, turns out it was a bad wire rubbin another one.
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Old Jul 11, 2006 | 02:20 AM
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i am going to go on a 5 hour ride next weekend, this wont affect my car will it?
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Old Jul 12, 2006 | 02:46 AM
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more than likely not, but id find out what code it is first. its 5 mins out of your day and its free.
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Old Jul 12, 2006 | 02:52 AM
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I went by autozone today and the guy working there had no idea about cars, he said that they couldnt check to see why the light was on..so i will go back today when diffrent ppl are working
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Old Jul 12, 2006 | 10:28 AM
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I work at an autozone and alot of them (at least in my area) are only doing the OBDII tests. That might be why he said he couldnt. But then again some still can so id just try again.

Btw I would like too know too because my car does the same! Once im in sixt cruising alon steady itll turn on a few min later sometimes itll go off in a few mins someties it takes longer but it goes off by the time I get where ever it is. Iv scannd for codes nd found none.
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Old Jul 12, 2006 | 10:36 AM
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I have a 96 Z28 which I'm pretty sure is OBDII but Autozone said they couldn't check my light??
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Old Jul 12, 2006 | 11:23 AM
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96 should be obdII. they came in 95 if im not mistaken. my light does the same thing. I was told once it was the egr valve. then again it was the o2's. well the o2's were bad so i changed them but it still comes on every once in a while. more often when it is hot outside I have noticed.
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