p0102 engine issues - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 04-05-2011, 04:53 PM   #1
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Default p0102 engine issues

A couple of weeks ago the p0102 code showed up and now the engine is acting weird. After I start the car it will stutter and seem like it will die until it revs up to 3000+ RPM and it settles after that. The engine dies after a sudden stop -like exiting a freeway and having to stop immediately for a light- but the car starts again right away.

Took out the MAF and cleaned it, one of the filaments was black but now both are silver. Seems to me like the amount of air coming into the engine is not correct, could a vacuum leak be the culprit? Any thoughts?


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Old 04-05-2011, 06:29 PM   #2
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Try driving with the MAF disconnected and see what happens.

Read this: https://www.gmforum.com/showthread.p...ighlight=p0102

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Old 04-05-2011, 09:13 PM   #3
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If the engine runs good with the MAF unplugged, then the MAF is likely bad.
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Old 04-06-2011, 08:07 AM   #4
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Agreed... that code is a maf code that would lead to the cleaning. Did the code reappear?
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Old 04-06-2011, 07:51 PM   #5
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I unplugged the MAF and drove it for a while but the problem remains.
For some reason now the oil pressure has started to fluctuate like crazy, anyone think these problems are related?

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Old 04-06-2011, 08:16 PM   #6
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Does the RPM drop about the same time as you see the oil pressure drop?
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Old 04-07-2011, 02:34 PM   #7
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Quote:
Originally Posted by Danthurs View Post
Does the RPM drop about the same time as you see the oil pressure drop?
Not at the same time. When the car is going at a constant speed, like in a highway, everything is fine. But when I'm in city traffic, the oil pressure starts to fluctuate like crazy and I need to get back to a constant speed to stop it.
I can't think of a reason why this would be related to a p0102 code, it'* driving me nuts.
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Old 04-07-2011, 02:55 PM   #8
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Quote:
Originally Posted by Emmanuel View Post
Not at the same time. When the car is going at a constant speed, like in a highway, everything is fine. But when I'm in city traffic, the oil pressure starts to fluctuate like crazy and I need to get back to a constant speed to stop it.
I can't think of a reason why this would be related to a p0102 code, it'* driving me nuts.
PCV valve is the only way I could think of, but Dan probably has a better idea.
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