[Biturbos4] Running rough-check engine-then stopped

Single Malt s_malt at yahoo.com
Fri Sep 9 09:23:48 EDT 2005

--- r harout <carrera3_2 at yahoo.com> wrote:

> Strange behavior. Got in the car last night after it
> sat all day at the airport.
> Stated fine, ran fine for a few mins. Then got to
> the chek-out parking and it started to vibrate.
> RPMs were fine, just vibrated. Got on the highway
> and it was fine for a few minutes..
> Then it started to 'chug' a little bit and the check
> engine light started to blink. It felt like the car
> wasn't getting enough gas or something--or like it
> was choking. Its still ran and accelerated, but mor
> elike a normal car without twin turbos.
> did this 3-4 times--then miraculously went away and
> power was full on again. No more check engine light.
> What do you guys think: a) mass air flow or b);
> infamous misfiring>?
> I've learned enough about Audis not to have anything
> done unless the problem continues. Otherwise I will
> just pay for Audi to try and recreate the problem..

Hi Rich.

I would think your best first step is to look for
DTC's using VAGCOM or ProDiag .... but I'm guessing
you don't have either of those tools?  Once of the
symptoms you refer to sounds like "limp mode" ... 

Where are you located?  Perhaps a "local to you"
lister could scan for codes and give you a place to

You're right about the transient nature of some
problems.  Even my dealer has stated that often they
will not address an issue until it happens twice.

Single Malt
'01.5 S4
Garaged at 9200ft
just outside Denver, CO

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