Any problem with replacing exhaust & cats on one side only?
11-13-2004, 05:01 PM
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Any problem with replacing exhaust & cats on one side only?
Getting a code 16805 (Warm Up Catalyst: Bank 1: Efficiency Below Threshold) and I believe the dealer's plan is to replace bank 1's cats under the emissions warranty. I think it's more likely that one 02 sensor on that bank is on the way out, but I'll just replace that myself when it codes. I'll go ahead and let them replace one side of the exhaust anyway but I want to make sure it doesn't cause any back pressure imbalance issues.
11-13-2004, 07:51 PM
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You may get a more enthusiastic response (more)...
...here :-P<ul><li><a href="https://www.audiworld.com/forum/a6.html">https://www.audiworld.com/forum/a6.html</a</li></ul>
11-14-2004, 03:38 AM
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True, but much more tinkering and whatnot going on over here. Although . . .
probably not too many S4'ers actually replace stock cats with stock cats. Temptation to improve is too great : )
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