[s-cars] S4 bucking under WOT - what else?

[Bob DG]

I have the problem that feels like the fuel pump shut off, replaced the MAF, 
didn't help. I think it is in the ECU, MAP sensor. I have swapped ECUs with 
someone, I no longer have the problem...


>From: chris chambers <fastscirocco_2000 at yahoo.com>
>To: Ivan Demkovitch <idemkovitch at hotmail.com>,s-car-list at audifans.com
>Subject: Re: [s-cars] S4 bucking under WOT - what else?
>Date: Thu, 22 Sep 2005 21:16:48 -0700 (PDT)
>
>Ivan,
>
>If it "bucks" and feels like the fuel pump shut off then it
>could be a bad maf or dirty contacts on the MAF or its cable. When the
>MAF causes this problem it's because the ECU believes the car is
>overboosting and cuts off the fuel pump.
>
>I see you "cleaned" the MAF, what did you do? I had the same problem
>and fixed it by using electrical cleaner to spray and scrub the
>contacts on the MAF and its cable clean.
>
>If it accelerates but accelertes hard and is rough while doing so then
>I would look at the Coils or POS. Re-check each of the coils with a
>manual spark plug tester increasing the gap until you either get a coil
>to test bad or all of them to test bad (meaning they are all equally
>good).
>
>HTH
>Chris
>
>PS I purchased a cheap manual spark plug tester at Autozone for ~$6
>
>AUDI - Accelerates Under Demonic Influence.
>
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