Dec 21, 2021 · The most common signs of bad mass air flow sensor (MAF) in Audi S6 are loss of power or slow acceleration, engine hesitation or jerking during acceleration, erratic idling, misfires, poor exhaust emission values and sometimes black smoke comes out of the tailpipe.

Aug 9, 2023 · Where is the air sensor in number 1 or 3? Not really familiar w/ the 2.4L V6, but No. 3 appears to be same as the N95 valve for the Leak Detection System on the 3.2L V6. On my past 4.2 and current 5.2, it is in the air box, Same with my wifes 4.2, If there is a wire harness going into the box, it will be in there. You will know when you open it up.

Nov 12, 2024 · Is your Audi hard to start, jerks during acceleration, the engine runs lean, or is the check engine light on (fault code P0101)? Learn how to fix it by replacing the mass airflow sensor. Follow the procedures below to replace your Audi vehicle’s mass airflow sensor.

Feb 16, 2016 · On the other hand, I do have OBDII reader, and I just went for a short drive, and measured the MAF values with that. This is what I found : At idle, with AC off, 4g/s.

Oct 28, 2008 · My CEL came on and I was told that it is likely due to my MAF ('00 4.2 A6). I have a replacement on the way and was planning to replace it myself but the more I read the more questions I have. Is this a simple parts swap? Any direction will be appreciated!

This video will show you how to remove your Mass Air Flow Sensor aka MAF (4.2 Twin Air Filter version) for your Audi A6, S6 or RS6 (C5) 1997-2005.Looking for...

Mass Air Flow Sensor - Repair or Replace If the mass air flow sensor or MAF meter in your Audi is failing, you’ll notice in addition to the check engine light that your engine may crank and not start, or that the engine speed surges at idle.

The smoke during acceleration occurs because a faulty mass air flow sensor sends incorrect data to the engine computer, causing improper air-fuel mixture. This explains both the poor fuel economy and the visible exhaust smoke.

Oct 4, 2013 · A6 / S6 (C5 Platform) Discussion - Mass Air Flow (MAF) question for replacing - So I replaced my MAF on my 2002 Audi A6 2.7t. And it did not fix the problem of hesitation and jerking and bouncing within a range of RPMs.

Apr 15, 2009 · Audi charged me 120 to look and find the problem. A few hours later they found the problem and said it was the Throttle body Dirty. Well they had already cleaned it, Test drove it and found it fixed the problem and everything was good to go.