PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

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Old Jul 16, 2015 | 07:24 PM
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95GMC5.3's Avatar
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From: Ava, Mo
Default I have Issues

Ok I have a 95 GMC C1500 with a 04 DBW 5.3, 5 speed about 10,000 miles since swap. It all of a sudden started cutting out really bad at slight throttle. It seems to be worse after it has warmed up, as of yet it has never did it under hard throttle. It gets pretty violent some times especially in lower gears. I have Checked fuel pressure, I have changed Throttle body, Mass air flow sensor, no codes are present. I am stumped any suggestions would be greatly appreciated!
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Old Jul 17, 2015 | 06:59 AM
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Post a data log???
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Old Jul 17, 2015 | 07:14 AM
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Currently I have no way of doing that, but if I can find a way to I will.
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Old Jul 18, 2015 | 09:17 AM
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Any One, Ideas???????????????
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Old Jul 18, 2015 | 04:46 PM
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Too vague unfortunately. You need to post a data log for the tuning folks! Unfortunately it's like saying my laptop won't connect to internet. Too many possibilities to give a straight answer. Gotta start troubleshooting and hope it's not internals in the engine. I'd check all spark plugs and see how they look and maybe change out. Have you recently changed anything in the PCM?
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Old Jul 25, 2015 | 08:21 AM
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Ended up being the MAP sensor, runs great now.
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