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06-11-2016, 09:06 AM | #1 | |
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Mass Air Flow
Ok so I just replaced my mass air flow sensor about a week ago. My check engine light just came back on and when I scanned it it said mass air flow sensor. Any ideas what could be causing this to happen again? The codes are P0102, P0440, P0440.
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06-11-2016, 12:08 PM | #2 | |
Confoundingly Lucid
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Re: Mass Air Flow
P0440 is the infamous gas cap code. You will get this if the cap is not tight, also if there is a leak in the evap system anywhere.
Inasmuch as the P0102 - does this have the factory intake system (airbox) or has it been modified? Check the condition of the wiring leading to the MAF.
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06-11-2016, 12:39 PM | #3 | |
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Re: Mass Air Flow
put the old MAF back in. common connector issues. new does not mean good.
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06-11-2016, 11:55 PM | #4 | ||
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Re: Mass Air Flow
Quote:
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06-11-2016, 11:56 PM | #5 |
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Re: Mass Air Flow
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06-16-2016, 05:54 PM | #6 | ||
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Re: Mass Air Flow
Quote:
should idle if the MAF is bad though. I would check that you have NO leaks after the MAF. also again the connector /wiring/ also check voltages at the MAF you tube has a good video. you will need a frequency meter for ONE of the readings which is the MAF output. only use MAF cleaner !!!!!!!! carb cleaner will kill it. |
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chevy , maf , massairflow , silverado |
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