Stumbling at low RPMs.... again.
03-01-2006, 12:05 PM
#1
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Stumbling at low RPMs.... again.
I'm getting a stumble or hesitation while accelerating, relatively low RPMs (say between 1000-2000), VERY noticable in 1st and 2nd (think: a partial pull of the e-brake for a blink) but it's there in 3rd and almost unnoticable in 4th. VAG-COM says everything is ok. Replaced the temp sensor with a new green part a few weeks ago. All hoses connected and unbroken. New, pricey DV (name escapes me at the moment). Modshack stage 3.
Any ideas? It's getting quite annoying...
<img src="http://pictureposter.audiworld.com/101294/after2.jpg">
Any ideas? It's getting quite annoying...
<img src="http://pictureposter.audiworld.com/101294/after2.jpg">
03-01-2006, 12:46 PM
#6
Easy...
Plug in the VAG, turn on the key (no need to start), go to engine/measuring blocks, and input 032 on the first section. Note + or - and give me the numbers!
Also check for faults and codes...
Also check for faults and codes...
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03-01-2006, 03:52 PM
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Re: similar problem
i took my car to the dealer, let it sit overnight for them to check and they say that they don't notice the issue and no fault code comes up. i don't understand how they cannot sense the 'hesitation, stumble, lurchiness, ****e' condition when driving out in 1st or 2nd. i'm seriously questioning the Audi technicians...
03-01-2006, 04:14 PM
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sitting in the car right now...
<center><img src="http://pictureposter.audiworld.com/101294/vag.jpg"></center><p>and here is what I get. Also, I have to correct my previous post. The stumble happens more like 2500-3500 rpm. (It's hard to drive this car and a big straight-6 and keep the rpms straight in your head... 
03-01-2006, 04:18 PM
#10
I think I see the problem...>>
A MAF going south. It would normally be +/- 5% for the partial throttle. With a **** you usually see a slight Rich correction (negative 4% or so). The +11% means the O2 sensors are trying to correct for not enough fuel. In simple terms, your MAF is not putting out a good enough signal to keep it all balanced....