Mass air flow problems

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Aug 10, 2018 | 05:20 PM

#11

wht02monte

Joined: Oct 2009

Posts: 4,159

From: Coal City,Il

So what would be unusual at idle.. I watched mine at idle and it jumps between 0 and 0.4. Is that normal? Also, while driving it seems to fluctuate while I do my best to keep the gas pedal in the same exact position.

Aug 11, 2018 | 06:14 AM

#12

ChibiBlackSheep

Monte Of The Month -- August 2014

Joined: Sep 2008

Posts: 25,145

From: Southeast PA

Quote:

Originally Posted by wht02monte

That sounds reasonable to me. And while driving the fluctuations could be the torque converter locking / unlocking.

Aug 16, 2018 | 02:32 PM

#13

coolhand

Joined: Dec 2012

Posts: 107

From: Lombard, IL

Quote:

Originally Posted by llojak2004

Hello, I am having problems with my 2001 Monte SS. I had a code for a bad mass air flow sensor so I bought a Walker unit and it lasted 2 weeks then went bad so I bought a new one from autozone it is a Valuecraft unit and it cost $129 with a lifetime warranty and it lasted 3 weeks and went bad. I disconnected it and it runs but poor gas mileage. I have had it at a dealer and said the throttle body is bad which I cleaned it and put a new fuel filter and throttle pos. Sensor on and same result. Help??

My 02 SS had the same problem. I tried 3 different MAF sensors and they all still threw a code. I wound up buying a used one off ebay, the same GM part number as the original and it's been working fine. The aftermarket sensors never seem to work right for some reason.