Mass Air Flow Sensor problems..... - Chevy HHR Network


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Old 07-08-2012, 08:28 PM   #1
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Angry Mass Air Flow Sensor problems.....

I have an 08 2LT with the 2.4/auto and ive gone through 2 Mass Air Flow sensors. The third time it acted up i took it apart and saw it was dirty and was able to clean it(i know your not supposed to do that but it worked for a good 6months now). Ive been having this problem for the past year(3 times) and now its acting up again. The motor surges and stalls, mostly when at a light but when it gets bad it does it even going 70. Eventualy it throws the MAF CEL and one for random misfire aswell. It doesnt matter if the motor is hot or cold. The only thing i could think of is i put a K&N filter in it about 1 1/2 years ago(ive cleaned it twice since i put it in and re-oiled it) and i wanted to know if anyone else is going through the same thing????
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Old 07-08-2012, 09:02 PM   #2
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Don't oil the filter.
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Old 07-08-2012, 09:19 PM   #3
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Did you use MAF cleaner (available at your local auto parts store)? It IS the oil from the filter. Yes, almost everyone that installed an oil-able filter has the problem, it seems mostly from over oiling.
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Old 07-08-2012, 09:22 PM   #4
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I'm glad I visited this site before installing a K&N. I was very careful about the amount of oil on the filter and made sure to let it sit for a while before installing.
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Old 07-08-2012, 10:06 PM   #5
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no I didn't use the cleaner......but I shall buy a new air filter tomorrow then and clean the airflow meter again......
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Old 07-09-2012, 08:12 AM   #6
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no I didn't use the cleaner......but I shall buy a new air filter tomorrow then and clean the airflow meter again......
Be sure to use the MAF cleaner, it is made for the job. Even touching the thing could muck it up, like any fine electrical filament.
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Old 07-09-2012, 01:16 PM   #7
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yup but that will have to wait cause the HHR was towed to the dealer because the lock cylinder they replaced on saturday stopped working.....
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Old 04-28-2015, 02:28 PM   #8
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Maf

we went to an auto parts store the HHR was acting up they said MAF was bad i was wondering if they make an aftermarket MAF?
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Old 04-28-2015, 03:41 PM   #9
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we went to an auto parts store the HHR was acting up they said MAF was bad i was wondering if they make an aftermarket MAF?
Yes. But the auto parts store you went to should have been able to answer that.

Fwiw. It may not be a MAF problem. If they read the codes and the code # instructed you had a bad MAF, that may be wrong.
Some codes #s can give a "false" positive about which part is defective.
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Old 04-28-2015, 03:49 PM   #10
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You can get rebuilt and new MAFs. EBay from China is a lot cheaper.
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