[s-cars] Advice needed: S6 engine problems

[Steve Marinello]

Sounds all too familiar.

BTW, my responses so far (number of like responses in parantheses) have
included the following possible defective items:

clogged/failing cat (5)
bad/wet coil packs (2)
loose spark plug(s)
bad throttle position sensor
bad O2 sensor
bad "Power Stage Output" device
bad ECU (modded ECU unable to justify road speed with engine speed)
fuel pump (bad pump/pressure or connection)
leak in vacuum or boost lines

SO, now you have a whole set of things to wonder about while you wait.
FWIW, all but one of the failing cat responses had all had similar
situations cured by replacing or gutting the cats.  You know 13 or 14
reponses in less than a day to a call for help is pretty damn impressive for
a list like ours.

My car has 85k on it, so I might just start to replace a lot of these things
anyway.

Later!

Steve

----- Original Message -----
From: "Jonathan Thames" <jthames at legros.com>
To: "'Steve Marinello'" <smarinello at telocity.com>
Sent: Tuesday, May 01, 2001 12:47 PM
Subject: RE: [s-cars] Advice needed: S6 engine problems


> Sorry-that was my phrasing-just that it was definitely misfiring.  I
didn't
> hear it at first, as it wasn't too bad and I was more concerned with the
> smell, but the misfire is definitely there. If you rev the throttle by
hand
> under the hood, you can hear the engine stumble, and it runs more like a
> diesel than a gas engine.  But again not bad, and I didn't lose  too much
> power, except when I'd try to go up a hill, and they're all 35 degrees or
> steeper out here.  The strange thing is, this morning when I left for the
> dealer, it ran perfectly (about 45 degrees and dry out), but about 7-10
> minutes after I'd started it, it started to crap out.
>
> -----Original Message-----
> From: Steve Marinello [mailto:smarinello at telocity.com]
> Sent: Tuesday, May 01, 2001 10:51 AM
> To: Jonathan Thames
> Subject: Re: [s-cars] Advice needed: S6 engine problems
>
>
> How does he define a "solid misfire"?
>
> ----- Original Message -----
> From: "Jonathan Thames" <jthames at legros.com>
> To: "'Steven Searle'" <s-searle at home.com>; "Steve Marinello"
> <smarinello at telocity.com>; <s-car-list at yahoogroups.com>
> Sent: Tuesday, May 01, 2001 12:03 PM
> Subject: RE: [s-cars] Advice needed: S6 engine problems
>
>
> > My 1995 S6 just started doing the same thing on the way home last night.
> > Exactly the same symptoms, including the fireworks/sulphur smell.  John
at
> > Univ. Audi here in Seattle (he has a 1992 S4) said that he thought, just
> > based on his initial guess, it might be one or another bad coil pack,
b/c
> > that is an 'issue' the car has, because the cat didn't rattle or
anything,
> > and it had a solid misfire. I'll report back hopefully good news this
> > afternoon.
> >
>
>