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cat fault code
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  1. E46 General
    Hey fellow e46 drivers, this is my very first post on the forums and we should get started with the basics. Im 19, full time college student, with a little part time Job equating to about 400 a week. By no means am I broke, but by no means do I got cash that magically appears in my bank account...
  2. E46 General
    Lean Condition , misfiring followed with low cat efficiency added on top to that. To all who can contribute any solution to the posted condition, I appreciate. Intro: I have read and scrolled through multiple threads related to similar issues and found that despite the issues might be similar...
  3. E46 General
    Hey, I looked around and couldn't find great advice for my situation. My 03' 330ci has an issue with the catalytic converters. Sometimes the CEL comes on, and I've had the codes read, efficiency banks 1 and 2 I believe. Other times, it stays off. It goes on and off every few weeks. I'm in...
  4. E46 General
    Hey all i have a 2001 318i with fault code coming up as cat running below efficiency bank one. I have had the cat pipe replaced with the rear lambda sensor still not fixed then had the PVC valve replaced and the problem is still here. I've had fuel filter also changed. can anyone help as I have...
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