S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

How do you test if.....

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Apr 19, 2005 | 02:56 PM

#1

jballou

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How do you test if.....

if you have a bad MAF??? I just did some cleaning which I unplugged the maf and moved the airbox out of the way, then I moved the car out of the garage, the car felt the same. Please let me know... Oh plus I was have been getting bank too rich, bank to lean codes as well.

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Apr 19, 2005 | 04:15 PM

#2

VonK :: Retired

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First check: unplug the MAF sensor. If the car runs OK w/o MAF, the MAF is bad.

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Old

Apr 19, 2005 | 05:50 PM

#3

jballou

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Re: First check: unplug the MAF sensor. If the car runs OK w/o MAF, the MAF is bad.

I will try that tonight....
Thank you.

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Old

Apr 20, 2005 | 01:05 AM

#4

Quattrosaurus

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Those 4 codes (bank1/2 too lean, bank 1/2 too rich) go hand in hand with a bad MAF

If its bad enough you'll start getting some misfiring codes also.

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