[s-cars] Running rich,...Stromung Kitty?

Tom Mullane tmullane at gmail.com
Fri Feb 13 08:27:23 PST 2009

That's why I'm curious about the symptoms.  You say "running rich" but
I'm not sure why you think that is so.  Smell?  It sounds like you
don't have any sort of digital readout indicating mixture via a
wideband O2 signal, and you have no codes.  So why do you think it is
running rich?

The cat is behind the O2 sensor.  Its presence or absence is
immaterial.  The only real issue it can cause is when it becomes
plugged and creates obstruction.


On Fri, Feb 13, 2009 at 12:12 PM, Douglas Landaeta <dlandaeta at gmail.com> wrote:
> okay, kinda was looking for that answer. no codes, I checked basic settings
> with Vag-com. Everything is within range. The O2 adaptation was at the edge
> a 37 I believe, where the range is 35-37. wideband?
> On Fri, Feb 13, 2009 at 9:50 AM, Tom Mullane <tmullane at gmail.com> wrote:
>> The catalytic converter has nothing to do with rich or lean.  Look
>> elsewhere.
>> What are the symptoms?  Codes?  Limp mode?  Are you using a wideband to
>> monitor?
>> Tom
>> Date: Thu, 12 Feb 2009 17:36:26 -0500
>> From: Douglas Landaeta <dlandaeta at gmail.com>
>> Subject: [s-cars] Running rich,...Stromung Kitty?
>> To: "S-Car-List at Audifans.Com" <s-car-list at audifans.com>
>> Message-ID:
>>       <29f1d8510902121436k72a6ba2bx568a2d7dcc56d874 at mail.gmail.com>
>> Content-Type: text/plain; charset=ISO-8859-1
>> Well I can't find anything obvious as to why my UrS4 is running so rich.
>> Is
>> it possible that my catalytic converter is fried from some great track
>> days
>> last fall?
>> It's a newer generation Stromung system, installed about 35k miles ago.
>> Full(er) RS2 goodies CRB 6 speed - where 3rd gear did most of the track
>> work
>> for me.
>> Already replaced O2, plugs, boots, temp sensor, oil. If so, where does one
>> find the right replacement cat?
>> Thanks,
>> Doug
> --
> http://www.hdradio.com

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