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76C10Stepside · 05-28-2013, 03:15 AM

Have you tried clearing the codes and checking them again? Sometimes old codes are still in there from a previous situation. If you still get the two codes, I'd focus on the FIRST code reported and whatever part (or parts) are indicated. I once had a bad MAF sensor on a Buick 3.8 and got two different codes. The first code was for the MAF, forget what the other one was (probably O2 sensor). I tried cleaning the MAF first, with no improvement, so bought a new one and that cured the problem and BOTH trouble codes went away. Not saying your MAF might not just need cleaning. If you drive on dry dirt roads or through a lot of mud/rivers or something, it might be really grungy.

05-28-2013, 03:15 AM	#2
76C10Stepside Registered User Join Date: Feb 2012 Location: Olympia, WA Posts: 300	Re: mass air flow sensor Have you tried clearing the codes and checking them again? Sometimes old codes are still in there from a previous situation. If you still get the two codes, I'd focus on the FIRST code reported and whatever part (or parts) are indicated. I once had a bad MAF sensor on a Buick 3.8 and got two different codes. The first code was for the MAF, forget what the other one was (probably O2 sensor). I tried cleaning the MAF first, with no improvement, so bought a new one and that cured the problem and BOTH trouble codes went away. Not saying your MAF might not just need cleaning. If you drive on dry dirt roads or through a lot of mud/rivers or something, it might be really grungy.