catalyst

  1. henryg

    Catalyst below threshold fault

    Hello, I keep getting the same fault popping up telling me the catalyst is below its threshold. I have a Piper turbo back exhaust system with a sports cat fitted. When I fitted the exhaust 8 months ago it was fine up until now. Any ideas on what it might be? Cheers, Henry
  2. Faisal

    Welded catalyst or flanges?

    Hello, i have had a sports cat installed a long way back by RMS in prestwick (i have heard mixed reviews from them ever since). i do have one issue, they used a flange for the sports cat, and recently my exhaust sounded burst, it turned out that it needed repasted. had to travel all the...
  3. RichN

    Lambda and Catalyst: codes 16804 and 16514

    Hi guys.. I'm getting the following codes regularly after clearing them.. 16804 - Catalyst System: Bank 1: Efficiency Below Threshold P0420 - 35-00 - - 16514 - Oxygen (Lambda) Sensor B1 S1: Malfunction in Circuit P0130 - 35-10 - - - Intermittent I get an occasional...
  4. Catalyst Fault with new Cat

    Hi All :) I've recently had my Cat replaced on my 1.6 petrol Mk1 Leon. However the engine management light comes back. I've taken it back to the garage where i got the Cat fitted and they have tested it twice and the emmissions test pass. Anybody have any ideas? Cheers!!