Mass air flow problems

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#11

08-10-2018, 05:20 PM

wht02monte

Join Date: Oct 2009

Location: Coal City,Il

Posts: 3,975

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.

#12

08-11-2018, 06:14 AM

ChibiBlackSheep

Monte Of The Month -- August 2014

Join Date: Sep 2008

Location: Southeast PA

Posts: 25,136

Quote:

Originally Posted by wht02monte

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

#13

08-16-2018, 02:32 PM

coolhand

Join Date: Dec 2012

Location: Lombard, IL

Posts: 107

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.