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  1. E46 General
    Could someone help me read this o2 sensor readings? My cat codes have been pending for a few weeks now, driven it over 500+ miles. Do I need to keep driving it to make the monitors ready? Previous seller noted that the cats were replaced, but not sure or part number or OEM. No check engine...
  2. E46 General
    So my O2 sensor wires were hanging loose for a while and I was meaning to get around to fixing it and putting heat shielding on it. I really shouldn't have let it go that long, and now the connectors are ruined. I need to do inspection by the end of next month 😅 What's the best way to fix it...
  3. E46 General
    Hello all, I understand this code is probably talked about a lot on here but maybe not like this? A few years ago I started getting a P0420 code so like any normal person would I stuck an O2 sensor spacer about 3" long onto the downstream sensor. This was working for the past 4 or 5 years no...
  4. E46 General
    I have a 2004 BMW 325i base model and I want to DIY the sensors. I’ve bought some but it didn’t fit. I really need help finding the right sensor ✊🏾
  5. E46 General
    Hey everyone, so my 2002 325i can not pass emissions due to the O2 and catalyst sensors not being ready. When I first took my car for the test I had 4 modules not ready, but after doing the drive cycle I am down to 2. Also, my SES is on and two codes are being brought up (P0491 and P0492) but...
  6. E46 General
    Hi, I have a 2003 325i (M54) that is in need of new O2 sensors or at least that's what our shops computer is telling us. I've been looking around for O2 sensors and I cannot believe how expensive they are! There's a little luck on my side that I am the IT manager of a repair shop and have access...
  7. E46 General
    What does mean O2 sensor behind catalyst converter bank 2 I know bank 2 is 4,5,6 cylinder I don't know pre cat o2 sensor or post cat o2 sensor Pls help thanks
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