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02 trans am hesitates

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Old Jul 19, 2013 | 04:36 PM
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Default 02 trans am hesitates
I've got an o2 trans am ls1 and it will hesitate and act like its not getting gas, backfire and die but doesn't do it all the time... Any ideas?
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Old Jul 19, 2013 | 04:50 PM
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How many miles? Is it modded or stock?
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Old Jul 19, 2013 | 05:02 PM
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I just had that same probably and I changed my fuel assembly out and haven't had that problem since. But now my cats are bad and its starting to hesitate again so i'm not thinking it might be either your cats or fuel regulator
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Old Jul 19, 2013 | 05:22 PM
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Scan your check engine light and go from there, everything else is a wild guess...
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Old Jul 19, 2013 | 06:41 PM
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110k miles, has headers and off road y pipe. But check engine light doesn't come on when it happens
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Old Jul 19, 2013 | 06:58 PM
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Have you tried to clean the MAF?
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Old Jul 19, 2013 | 07:13 PM
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It was clean when I changed the lid about 2k ago
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Old Jul 19, 2013 | 07:28 PM
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Light doesn't have to be on, I've found codes with engine light off...worth a **** and its free, unless you wanna start throwing parts at it
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Old Jul 19, 2013 | 09:26 PM
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Originally Posted by Exarth
I've got an o2 trans am ls1 and it will hesitate and act like its not getting gas, backfire and die but doesn't do it all the time... Any ideas?
Originally Posted by 01WS6STANBO
I just had that same probably and I changed my fuel assembly out and haven't had that problem since. But now my cats are bad and its starting to hesitate again so i'm not thinking it might be either your cats or fuel regulator
^^^ check fuel pressure, sounds like a lean condition
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Old Jul 19, 2013 | 11:20 PM
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Make sure you have a good temp sensor those will cause issues like you mention. I had mine go bad a month or two ago and was causing my car to buckle, backfire and not run right
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Old Jul 20, 2013 | 12:29 AM
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Also o2 sensors, but like wildcamaro said do the scan other then that your just throwing money at it... but you will have slot of new parts
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Old Jul 20, 2013 | 10:43 AM
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Originally Posted by SteveWs6
Make sure you have a good temp sensor those will cause issues like you mention. I had mine go bad a month or two ago and was causing my car to buckle, backfire and not run right
Yeah I'm with him, just yesterday, start it doing the same symptoms as yours, and it was a the temperature coolant sensor that was crack and it was not making good contact, replaced it and its working great now
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