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1-13 of 13 Results
  1. Driveline, Performance, Tuning
    I'm putting a M52B28 TU in a kit car. It's actually from an E39, but I think the E46 group are a bit more responsive. I'm running GSXR 750 ITBs, and I've not got everything set up yet, and just want to understand why it's running so poor. At Idle it surges in revs, then drops and repeat. Here...
  2. E46 General
    Hey, I have a 2005 325Ci convertible and I've had an annoying problem and can't get a solution to it. My seatbelt sign is always on in all scenarios except when I fold one of the seats to get access to the rear, it flashes. From what I heard the flashing is normal in convertibles (and maybe...
  3. E46 General
    Hello everyone. Fiddling around i've found two black small boxes in the front of my car. They are kinda hidden over the left and right headlight unit and wired with a lot of brown cables. I have followed them towards the inside of the car but right now i cannot dissasemble the interior to...
  4. E46 General
    I started to have an issue with bogging around 2500 RPM after installing eBay headers. I keep hearing about swapping O2 sensors by mistake and was wondering about that? However, I have no post-cat sensors in (unplugged). I did have to use a 90 degree adapter on a pre-cat sensor and im wondering...
  5. E46 General
    Hello. I recently had to remove the whole intake manifold including the wire harness (octopus) in order to replace the gas lines. While putting everything back in I realised I can't find the socket for a connector. It has blue/red red/white wires coming out of it and is situated near the oil...
  6. E46 General
    hey everyone just signed up i am posting about my 2001 325ci the head gasket recently blew so i replaced the engine with a used one and my local garage had put it in well since its been out i have been having no power barely gets past 20 when i floor it i had 7 codes 6 misfires low fuel and...
  7. E46 General
    I'm wondering if my 328i has the sensors, and if they do, do they need to be replaced with every brake change?
  8. DIY: Do It Yourself
    Problem locating my PDC wiring. :confused: Bought my BMW and was not happy to find the parking distance sensors didn't work. After following the wiring from PDSs I found the PDC was missing. I picked one up online and can now not locate the wiring from the dash, I thought it would come over...
  9. E46 General
    I've been reading up on O2 sensors and have a general question I was hoping I could get answered here. In order to optimize fuel economy, is it critical that both the pre-cat and the post-cat O2 sensors are functioning properly, or do only the pre-cat sensors play a role in this regard?
  10. E46 General
    Previously had a P0161 post-cat bank 2 sensor 2 CEL. Replaced all 4 O2 sensors with new bosch sensors. Code has not appeared since, but today CEL came on stating P1193. Post-Catalyst Fuel Trim System Bank 2. After some searching people are saying this is O2 sensor related? My sensors are brand...
  11. E46 General
    Hi everyone, Unfortunately my 2001 coupe's PDC sensors are playying up. Before someome shouts SEARCH! I've done quite a conclucive search and can't find what I'm after. When i put the car into reverse i get the solid 5 second beep which seems to be a standard indication that one of the sensors...
  12. DIY: Do It Yourself
    Anyone have any experience replacing the rollover sensor on an E46 convertible? Where is the thing physically located? I thought it was the "black box" under the rear seat cushion but that's not it. Also, does anything need to be reset after you replace the unit? Tip: Dealer wanted ~$450...
  13. UK
    hi everyone, I have an e46 318 {03} that has thrown up a few codes and as a result it has been fitted with new o2 sensors and a new MAF sensor, the problem has improved but is still there, the only code im now suffering is P1168 FRP Sensor In Range But Low. I can erase the code but it...
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