quattroworld.com Forums: Late to the party here, but sounds like a blown cat. We've seen a few cars like yours with failed

Late to the party here, but sounds like a blown cat. We've seen a few cars like yours with failed
Posted by: Laszlo@034 (7821) on 2016-05-20 12:55:36 \| Advertiser In Reply to: Though I'm no longer a B5 owner (bad choice on my part), visiting from B8 forum for a little help, posted by Kingtr on 2016-05-19 19:56:57	Share \| Report

cats. The dealer should replace it for you as it's an emissions-related device, but I'd recommend visiting your tuner and having them flash you back to stock first.

Thread:

Though I'm no longer a B5 owner (bad choice on my part), visiting from B8 forum for a little help, - Kingtr 2016-05-19 19:56:57 (433 views)
- Thank you all for the help, clogged cat 100% makes sense and the material has since broken up and - Kingtr 2016-06-16 23:07:02 (159 views)
  - I would personally put it completely back to stock with the tune and pulley. As for the tune, - myers 2016-06-17 19:58:48 (140 views)
- Late to the party here, but sounds like a blown cat. We've seen a few cars like yours with failed - Laszlo@034 2016-05-20 12:55:36 (326 views)
  - 100% AGREE. Remove your tune before taking it to a dealer. - myers 2016-05-24 17:27:05 (172 views)
    - Is there no "trace evidence" of the tune left behind? What about the APR pulley, will it run - Kingtr 2016-06-16 23:08:43 (152 views)
      - Correct. Once you go back to Audi factory tune, APR completely removed, it cannot be detected. - myers 2016-06-17 19:50:55 (187 views)
  - 2nd. - AKS4 2016-05-20 18:18:10 (185 views)
    - 3rd. I've seen this before. I'm a tech at a dealer. - myers 2016-05-24 17:24:57 (220 views)
- blown cat - my guess - imawesome 2016-05-20 00:59:40 (212 views)
- Possible your catalyst broke up and is clogging the exhaust? - S4iowa 2016-05-19 23:11:10 (208 views)
- Carbon buildup? - Timtheguru 2016-05-19 20:14:08 (180 views)
  - I was thinking that as well, but in doing a little digging, its usually Secondary Air Injection - Kingtr 2016-05-19 20:21:06 (231 views)
    - The muffled exhaust sound makes me think it is a symptom, but I could be wrong - Timtheguru 2016-05-19 21:25:00 (190 views)

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