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  1. Misfire when cold, P0201 and P0301

    ///M3 Forum
    So, I have a 2003 (AFAIR it is 2002-10) M3 with about 150K miles. The recent potentially relevant history includes a blown expansion tank, which appears to have been caused by the bad pusher fan. I think the engine did not have time to overheat while running without fan and low on coolant...
  2. Cylinder 2 misfire with fuel cutoff

    General E46 Forum
    Hello everyone I seem to have a misfire with fuel cutoff on cylinder 2. Code P1345 or BMW code 239. I have tried multiple things to attempt fixing this but I just need help. I just got the car not too long ago and I love it I just want to fix the problem. What I have tried Swapped coils around...
  3. 330i Delayed Deceleration?

    General E46 Forum
    Hey everyone, so as the title states, up until just yesterday, car was running fine, no issues. Yesterday I ended up getting an EML light which would also go into limp mode. This seems to have been fixed by removing the idle control valve and cleaning it out, code was P1500. After this, the EML...
  4. Need Help Diagnosing Misfire and Lean Condition

    General E46 Forum
    As a New Yorker who suddenly cannot use public transit for health concerns (please don't take this political) I actually need my car. Of course, it developed a sudden problem on Sunday while I was away checking on my parents. The car seemed to struggle at idle and actually stalled as I pulled...
  5. Coldstart misfire with multiple codes

    General E46 Forum
    So every so often when its cold out and I start the car to let it heat up for a bit, I come back to hear the car misfiring with the usual misfire codes starting with 13 like P1349, P1351 etc. As well as some ones where I have no clue what they mean.C0848, C2B12, C0713, C0700. Any help on this...
  6. Vanos or something else?

    General E46 Forum
    Hi, I've started noticing a loping feeling while idling in my '05 325Ci. Can't really hear anything, but the car feels like it's shaking. And the shakes usually happen one at a time, in a random pattern. I can see minor fluctuations of the tach when its happening, maybe 100-200 rpm. Last...
  7. misfire when driving normal and not when driving hard

    Driveline, Engine & DME Tuning
    Hello i did some looking around and i didnt see anything about this i have a 2000 323ci and i can't drive it in D or SD i have to drive in manual mode (not the worst thing in the world) and I have to drive aggressively or the car will start to misfire in cylinders 123 or 456 and occasionally I...
  8. VANOS Rebuild Time?

    General E46 Forum
    Hey guys, I'd like to get your opinion on a problem that seems to be getting worse on my E46. *UPDATE* I just ran my codes again and am getting a P0171 - Powertrain Systme too lean (Bank 1). It's a pending fault, and no CEL. Car: 2004 325CI Coupe M54 Engine 5-speed manual 203,000 miles...
  9. Random Misfires. Possible Head Gasket

    Driveline, Engine & DME Tuning
    Hi guys. New here. I read on here for hours but couldn't find a post matching my symptoms. 2005 330xi. 160,000 mi. Hoping to get a little expert advice trying to pinpoint this misfire problem I'm having. 2 weeks ago I started having these rough idle/random misfires right after i got gas...
  10. Bunch of engine problems after removing manifold, ideas?

    General E46 Forum
    Hi gentlemen, I did a starter replacement job a while back. Have an xi AWD so it was easier for me to get to it from the engine by removing the intake manifold than to go from the bottom due to the diff and other extras down there. I took off the manifold, replaced the starter, while I'm there...
  11. 2004 325xi Touring Leaking Oil, Burning Oil, and has a Misfiring Cylinder

    E46 Touring
    I apologize for this being so long, so there's a summary near the end, as I tend to add too many details. So I bought a beautiful 2004 325xi Sport Wagon last November, and shortly after my purchase I would notice a slight to moderately bad burning oil smell coming through the AC vents with the...
  12. ABS and DSC warning with misfires after 330i manifold swap on 99 328i

    Forced Induction Forum
    Hi, I am looking for some help with troubleshooting. This is my first post on this forum. Be gentle. I just "completed" a 330i intake manifold swap on my 99 e46 328i (manual). My car has a AA supercharger kit (stage 1), headers, borla catback exhaust. As part of the swap I redid the CCV...
  13. BMW E46 328i(1999) random misfires/rough idle/shuddering

    General E46 Forum
    My e46 refuses to get better. After running on idle for +30secs(start up, red light, does not matter) aswell as when driving there seems to be a random cylinder misfire. The symptoms of this are: heavy shuddering/shaking of the car upon acceleration or when idling loss of power hesitation...
  14. Major problems, need advice

    General E46 Forum
    A few problems started arising about a year ago with my 2002 325ci 130k on odometer. My problems began if my car sat out in warm weather for a few hours, the car would not start. Sometimes just after a long drive the car would not turn over, appears to be pretty random, though sitting out in...
  15. please delete

    General E46 Forum
    Please delete
  16. MISFIRE 03 330i HELP.

    General E46 Forum
    Yes, yes I Know.. Another misfire.. I've couldn't really find my exact problem while looking for answers so here it is. 2003 E46 330i 258k km. CODE: P0140 o2 Sensor circuit no activity detected bank 1 sensor 2 CODE: 0171 System too lean bank 1 O2 sensor? MAF Replaced INTAKE BOOTS CHANGED...
  17. All Cylinders Misfire

    General E46 Forum
    So I bought 01 330ci it had misfire cylinder 3 fault and when you start the car it is rough idle start shaking and you hear clicks i changed all of the spark plugs coil ignition for cylinder 3 and for the first few days it was fine and then it started to shake more and i got the faults again...
  18. Misfiring after engine is warm

    General E46 Forum
    My E46 328Ci with the M52TU engine starts to misfire after running for sometime. Changed the coil packs, spark plugs, fuel filter, pump and injectors recently. Scan gives an error code for an oxygen sensor, could this be the issue or does anyone have any idea what it could be? Thanks :bow:
  19. frustrating misfire at high rpm 320i 2002

    General E46 Forum
    Hi everyone, first post and new to bmw as well. i've just bought an E46 320i in the U.K and it drove ok on the test drive but once you take it past around 5000 RPM it makes a sort of rattle noise, loses power and loses up to 3 cylinders (mostly 4,5,6) all at the same time, throwing a check...
  20. Misfires :/

    General E46 Forum
    Hi there, I have a 2001 BMW 325XI with 180,000 miles. My dad bought the car when it had 3,000 miles on it and we've maintained it ourselves since, and I bought the car from him when I turned 18. I went on vacation for a few days last weekend and the car was sitting unused for 4 days. I drove it...