04-24-2012, 06:50 PM | #1 |
Drives: 2012 camaro 2lt white Join Date: Dec 2011
Location: Miramar, fl
Posts: 221
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check engine light! help
My check engine light just came out p0442.... i read on the forum that it could be the gas cap? but i have aftermarket exhaust which makes me think it could be the exhaust. Should i be worried and have the dealer check it out? also will the dealer void my warranty cause the exhaust? thx
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04-24-2012, 06:54 PM | #2 | |
13.453 @ 101.90
Drives: 2010 Camaro 2LT Rally Yellow Join Date: May 2009
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Quote:
http://www.obd-codes.com/p0442
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04-24-2012, 06:58 PM | #3 | |
Drives: 2012 camaro 2lt white Join Date: Dec 2011
Location: Miramar, fl
Posts: 221
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should the check engine go away or do i need to clear it to see if the tightening of the gas cap solves the problem? how do i clear the codes if i have to?
Quote:
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04-24-2012, 07:24 PM | #4 |
13.453 @ 101.90
Drives: 2010 Camaro 2LT Rally Yellow Join Date: May 2009
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Should go away on it's own after a couple drive cycles. Or take it to AutoZone they can reset it for free.
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04-24-2012, 07:34 PM | #5 |
Emerald Coast Camaros
Drives: 2010 2SS Rally Yellow Join Date: Feb 2009
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Well, mine came on like that and it wasn't the gas cap. it was the sensor in the gas tank with they had to drop my tank and replace it.
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04-24-2012, 07:37 PM | #6 |
Drives: 2012 camaro 2lt white Join Date: Dec 2011
Location: Miramar, fl
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OK, i am going to wait and see if the check engine light goes away....if i do happen to go to the dealer, should i have a problem with my exhaust voiding the warranty?
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04-24-2012, 08:22 PM | #7 |
Emerald Coast Camaros
Drives: 2010 2SS Rally Yellow Join Date: Feb 2009
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I myself think you should be fine. I have a mufller delete and they said nothing on mine.
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04-24-2012, 08:31 PM | #8 |
Drives: 2012 camaro 2lt white Join Date: Dec 2011
Location: Miramar, fl
Posts: 221
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Ok thanks
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04-25-2012, 10:52 PM | #9 |
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Did the problem go away? Loose gas cap can certainly make evap code pop up but I heard that the early GM direct injected models such as LNF had slew of evap purge solenoid failures. If everything is good after you tighten the gas cap than I guess it was false alarm, but you might want to keep this in mind judt incase it come back.
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04-26-2012, 05:20 PM | #10 |
Drives: 2012 camaro 2lt white Join Date: Dec 2011
Location: Miramar, fl
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My check engine light is still on, I'm going to give it a couple more days and see
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04-27-2012, 11:58 AM | #11 |
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leave the negative terminal off from the battery in the trunk for about 30 minutes and see if the CEL come back on. Any rough idle?
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04-27-2012, 02:49 PM | #12 |
Drives: 2012 camaro 2lt white Join Date: Dec 2011
Location: Miramar, fl
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The idle is normal for the most part, Tho sometimes it does feel a little weird at idle, I thought it might be cause I have aftermarket exhaust and no intake to breath better...
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05-11-2012, 03:10 PM | #13 |
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Does this work on OBD-2 cars? I always thought the newer ECUs had to be cleared whenever a code appeared since the code is stored inside the ECU.
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05-13-2012, 01:18 AM | #14 |
Drives: 2011 L99 Camaro SS Join Date: Sep 2011
Location: Planet Earth
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Hey guys as soon as you get aftermarket headers or exhaust the check engine light should come on; i have the same problem
That is because the cars ecu detects a change in air calibirations, and it thinks something is wrong with the car; i believe this can be fixed with a custom tune |
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