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

P0100 Code

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Old 07-05-2011, 08:20 PM
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So when it's cold it runs like a raped ape, the second it warms up the SES light comes on, it starts running like hell (coughing/almost dying/dying) and it's throwing the P0100 code. I've checked the voltage coming into the plug and everything is spot on what it's supposed to be, I took the MAF sensor off and sprayed the **** out of it with MAF sensor cleaner, no tears in the rubber intake... Oh and if it's running and I unplug the MAF sensor it will shut down, but I can start it right back up with the MAF unplugged, but if I plug it in then unplug it again it shuts off. Any ideas? Help?

I haven't tried actually driving it with the MAF sensor unplugged, should that be my next step?
Old 07-05-2011, 09:44 PM
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https://ls1tech.com/forums/lt1-lt4-m...tion-mean.html
Old 07-05-2011, 09:55 PM
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I already read that thread, that didn't really tell me anything past what I've tested so far.
Old 07-05-2011, 10:05 PM
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I would go through and check for vacuum leaks. I know my car felt like it had lost power after it was warm till I replaced my intake gaskets.
Old 07-11-2011, 10:36 PM
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This is more then just loss of power, it bogs/coughs once it gets warm. I tried unplugging the MAF senser and it dies, but then will fire right back up if I try to start it and run the same way. Do you think it could be O2 sensors? I replaced these before, but I think it's running a bit rich so I'm wondering if it burned them out. Any suggestions?



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