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misfires
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  1. 3 Series & 4 Series
    Coil packs, delphi replaced Inject all index 12 Low pressure fuel pump Spark plugs changed Low compression was good when the guys at a shop called redline motors put on a vargas stage 2 turbo kit less than a year ago Car starts as if it has no cold starts, used to get real loud but now just...
  2. Ask-A-BMW-Dealer
    Coil packs, delphi replaced Inject all index 12 Low pressure fuel pump Spark plugs changed Low compression was good when the guys at a shop called redline motors put on a vargas stage 2 turbo kit less than a year ago Car starts as if it has no cold starts, used to get real loud but now just...
  3. E46 (1999 - 2006)
    Hello everyone, This my first post here so excuse me if i do something wrong. It's going to be quite a story, but first things first. My best mate and I got a 2003 318i E46 with a 2.0l n42 engine. The car it self is in a really good condition, no rust (not even on the underside), no dents etc...
  4. E90/E91/E92/E93 (2006 - 2013)
    I have been doing non stop engine repairs on my 2008 328xi E90, ill list in order with behavior Random misfires started - - Replaced all ignition coils Misfires changed but continued, and whining started - - Replaced Valve Cover, Gaskets, Both Vanos Cylinders, Crankshaft Sensor, Spark...
  5. E60 / E61 (2004 - 2010)
    04 525i. I had originally being getting misfires swapped out coils and that cleared up. still had o2 sensors both banks saying stuck on lean and both banks throwing codes for running rich as well as Catalyst below efficiency level (hoping that was a result of the O2 sensors) replace the...
  6. E90/E91/E92/E93 (2006 - 2013)
    Hi guys! I am turning to you for help as I have spent quite a lot of money trying to fix a “loss of power and vibration” problem with my BMW 325i (e90, 2007) with N53 engine. The problem I have is rough idle (occasionally there is a misfire when I stop at traffic light but it is quite rare) and...
  7. E90/E91/E92/E93 (2006 - 2013)
    Hi All - Did some major work on my car but still getting codes. 328XI E90, 97K Replaced the MAF Replaced the valve cover gasket Replaced bank 1 and bank 2 O2 sensors. Vaccum Leak checked I am getting these codes: P0305 - Misfire Cyl 5 P0306 - Misfire Cyl 6 P0304 - Misfire Cyl 4 P0300 -...
  8. X5 E53 (1999 - 2006)
    So two years ago, I had kept getting repairs and doing multiple drive cycles. Finally it ended up being a secondary mass airflow relay. And then it passed smog. Now it***8217;s time for smog again, engine light is on. Same code***8230; Secondary mass airflow sensor. But on the professional code...
  9. E90/E91/E92/E93 (2006 - 2013)
    Recently ive replaced the Spark Plugs as well went with PR coils. Ive also went MHD BEF not too long ago. yet I'm still having misfires that are random between startup and WOT. The car starts and idles smooth as can be. under WOT(higher gears) the car hesitates sometimes but 1st, 2nd, and 3rd...
  10. E90/E91/E92/E93 (2006 - 2013)
    Hey guys, I have a 2008 E92 335i and I was changing my injectors due to a very nasty plug and misfires on cylinder 3. While the car was down I figured I would also clean my intake valves. All this went fairly well until I didn't get a fuel line completely tight and it sprayed gas in the valve...
  11. E60 / E61 (2004 - 2010)
    I have a 2006 BMW 530i with the n52b30a engine. So its misfiring on cylinders one and six. i know a couple of ignition coils are going bad but no matter how i switch these coils, it keeps reappearing in the same cylinders. I pulled out the sparkplugs and they are dry so no oil causing misfire. I...
  12. E39 (1997 - 2003)
    I know you may be thinking, "OMG another post about these guide rails." However; After weeks and weeks of scouring the internet, I feel that my question may be different and specific to my case. So here's a little back ground... I have a 97 BMW E39 M62 non-vanos Manual Transmission. I Recently...
  13. E60 / E61 (2004 - 2010)
    Hi Guys, I Really dont know what to do with my car. Just bought this car last month and before I buy the car I tested it first and sent to a BMW authorized garage to do the bumper to bumper check and it passed. Everything was ok but when I drove the car for 2 hours (long drive or straight...
  14. E90/E91/E92/E93 (2006 - 2013)
    I am driving an e90 BMW 335i with the n54 engine 2008. Mileage 80,000. I purchased the car used and took the car in for a diagnostic through a European shop for misfires on cylinder four. I was informed that by a diagnostic from the dealer (previously) that this was due to fuel injectors. The...
  15. E90/E91/E92/E93 (2006 - 2013)
    Got misfire code for cylinder 3,4 & 6 Moved around coils and erased codes to test them, couple miles later got the same codes; 4,5 & 6 Did the same with injectores and noting Bought new spark plugs and the same I dont have a trustworthy mechanic close by so ive been doing it my self I bought...
  16. E90/E91/E92/E93 (2006 - 2013)
    Hi there, just purchased my first BMW (06 325xi) and am wondering if I should be concerned about a slight hesitation when accelerating at low RPM's. It doesn't feel like a jaw jarring misfire as described in many other posts, and it only does it in first and second gear from 1k-3.5k RPM's. No...
  17. E39 (1997 - 2003)
    Hey, new to the forums and just getting into really working on my own car, so bare with me if I sound a little retarted. Just pulled some some codes off my 98 540i and was wondering where I should get started. First off had it for a little over a year now, bought it from a buddy who is a...
  18. X5 E53 (1999 - 2006)
    Hi guys. This is my first post. i look on the site all the time for help with my car issues but cannot find what i am looking for and was hoping someone can help me. here is my issue: I have an X-5, 2005, 3.0i, approx 107k miles When the engine is cold, i start the car and it is missing on the...
  19. E82 / E87 / E88 / F20 1 Series (2008 - 2014)
    I have a 2009 128i that I've owned since new with 87K miles that I have never had problems with until I got an MIL for misfires. I replaced the VANOS solenoids (with gaskets) as I've read that they're a common failure and installed new plugs since it's due anyway; The car continued to misfire. I...
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