[s-cars] Cat replacement options?

[chris chambers]

Gary,

If the only symptom is that it "feels slower" you might check and make sure the boost line 
to the ECU hasn't popped off the moisture trap.  When the hose is off (or loose) the ECU 
doesn't get the boost signal and you lose power.

On a 94 UrS4 that would be in the center of the firewall above the connector rack.

Look at this pic for location of the moisture trap
http://forums.audiworld.com/showthread.php?p=18945405

Otherwise if you really need cats I have a used stock exhaust off of a 93 UrS4
that could be cannibalized.

HTH
Chris



----- Original Message ----
> From: Gary <gary.erickson at rainymountain.com>
> To: s-car-list at audifans.com
> Sent: Sat, October 10, 2009 1:26:07 PM
> Subject: [s-cars] Cat replacement options?
> 
> So my wife (who's the primary driver of our '94 S4) came home from work
> yesterday to tell me that the UrS feels "constipated" and "not as fast
> as when we bought it."
> 
> It certainly feels to me like the cats are partially plugged and the
> fact that it ran with an ignition misfire for a while earlier this year
> probably helped them towards their demise.
> 
> Is there any list wisdom for sources for replacement cats?  I'm
> certainly not a fan of letting the local Midas shop attack it with a 
> torch and a couple of generic converters, but I'm guessing direct 
> replacements that I could install myself in the garage would run more 
> than a full Stromung.
> 
> We are in an area that performs emissions testing with visual inspection
> every two years, so just yanking them isn't a great option.
> 
> Suggestions appreciated!
> 
> -Gary
> 
> P.S.  I'd consider a Stromung, but I thought I recall somebody telling
> me they weren't being manufactured any longer.  If I'm wrong on that,
> would somebody please forward me Jeff P's email addy?
> 
> 
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