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  1. New Headers, now bogging at mid rpm (330Ci)

    General E46 Forum
    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...
  2. BMW 1.9i M43 Engine electrical harness (ID one connector)

    General E46 Forum
    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...
  3. help me someone please

    General E46 Forum
    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...
  4. Brake question

    General E46 Forum
    I'm wondering if my 328i has the sensors, and if they do, do they need to be replaced with every brake change?
  5. Any E46 2 Bosch Pre-Cat O2 Sensors

    Engine & Performance
    Purchased these by mistake. I needed the post-cat O2 sensors instead. BNIB. Asking $150 for both.
  6. FS: Headlights + Misc Parts

    Miscellaneous BMW and E46 Parts
    Hello all, I need to sell off some parts for 2001 BMW 330i Sedan since I no longer have the car. Prices are negotiable. Will post pictures soon. Parts are user but in decent shape. 1. Halogen head lights non facelift - $200/pair. 2. Miscellaneous cooling system parts, including hoses...
  7. HELP!!! - PDC wiring

    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...
  8. Question about oxygen sensors

    General E46 Forum
    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?
  9. replaced o2 sensors, now CEL p1193.

    General E46 Forum
    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...
  10. E46 Faulty PDC - not the usual problem...i think!

    General E46 Forum
    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...
  11. FS TPMS sensors with valves.

    Wheels and Tires
    I have 4 TPMS sensors in perfect condition, asking $ 110.00 shipped Serious buyers please. Thanks
  12. 330ci convertible rollover sensor replacement advice

    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. rough running and stuttering.

    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...