E46 Fanatics Forum banner
catalytic converter
1-5 of 6 Results
  1. E46 General
    Hey all, I've got a 2005 330Ci that I've painstakingly fixed up quite a lot. Had a small issue with a vacuum leak that ended up just being a faulty MAF. Replaced it, got rid of P0174 and P0171. Now the engine is completely vacuum tight and equipped with all kinds of goodies. Unfortunately, now...
  2. E46 General
    I have a 2003 325i and need a new front/rear (1-6) CC (not a NY or Cali) Any advice on brand to purchase that is reasonably priced? Online I see prices high and low but am told some are poor quality. Thanks!
  3. DIY: Do It Yourself
    I started to post about this about a week ago but found a page that had a check and fix... Here's the scenario. 2003 BMW 325i 248k miles. The engine would idle fine - super smooth and quiet. If you push the pedal hard, it would go into limp mode. If you got about 3500 RPMs it would go into...
  4. E46 M3
    Hi all, I got some great info from previous posts on this topic, but I haven't been able to crack my problem yet. I'm hoping you all can help. 2002 M3 w/ 68K miles. CEL intermittently comes on, throwing the P0420 and/or P0430 codes. Also the "Rich to Lean sensor threshold voltage" is failing...
  5. 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...
1-5 of 6 Results
Top