BimmerFest BMW Forum banner

misfire diagnosis

  1. E90/E91/E92/E93 (2006 - 2013)
    I couldn't find what i needed so here's my first post... So for months I've been experiencing misfires from specifically cylinder 6 and 4 on my bmw 328xi 2007 e92 113k miles. It was at a shop for months sitting (really lazy mechanics)trying to figure it out it would idle really bad knocking...
  2. E39 (1997 - 2003)
    Please help! I'm in dire need of some assistance with my E 39. The car just does not run right it misfires, bucks and sometimes just does not even run I've already replaced the coil packs, the cam position sensor, the mass airflow sensor the plugs, everything that i thought would be causing...
  3. E90/E91/E92/E93 (2006 - 2013)
    Hi guys, I hope someone can help. I recently bought my first bmw 57 plate 325i coupe. Everything was perfect until I got the vehicle home left it over night then the next morning. I started the car starts up fine but idles like a pig revs drop, starts to shudder, when I drive it its...
  4. E90/E91/E92/E93 (2006 - 2013)
    :mad: I have a 2008 335i with 3 cylinders misfiring (4, 5, and 6). I had the codes pulled and the following codes showed up: P0160, P0306, P0300, P0304, and P0305. I tried moving the ignition coils to the other plugs without a change in the cylinders misfiring. I replaced the spark plugs and...
  5. E90/E91/E92/E93 (2006 - 2013)
    ****My first post***** Hi everyone, I recently purchased my first BMW - 2007 335i convertible. I'm loving the car! It runs great and responds terrific! However, it's misfiring when starting up at times. Quite randomly as well. Sometimes it's when the engine is cold, sometimes it isn't. There...
  6. E90/E91/E92/E93 (2006 - 2013)
    Hey guys, we've come to a dead end before bringing my 2008 328i to our mechanic. When we changed my oil in November 2015 my car misfires getting onto the highway, brought it back to the mechanic and he read the code as a misfire on cyl #1 & #3, erased the code and test drove it.. all was fine...
  7. E30 (1982 - 1993)
    I have an '87 325is and have been trying to figure out this issue for some time now. First, I had a hard bogg occurring, that was fixed with a refurbished AFM. Second, I was getting a cutting out intermittent misfire. I replaced the spark wires and dist. cap and it seemed to temporarily fix the...
  8. E36 (1991 - 1999)
    Hey all i'm dealing with a strange problem with my 325i. It has the M50b25tu engine under 3500 rpm it has a misfire at around 4k it starts to pull hard and does great. but the misfire has me stumped. I have replace the spark plugs and checked the compression all that seams good. i was talking to...
  9. E90/E91/E92/E93 (2006 - 2013)
    I am new to BMW's and have come across the issue of Misfirings. Every time I would go past 3-4 rpm when accelerating it would begin to shake and give me problems when I had to pick up speed. But the weird part about it is, when I would turn my car off and back on the issue would go away and...
  10. E39 (1997 - 2003)
    hey guys! I have a 01 525i and its misfiring cylinder 6 with fuel cutoff (p1353) and its also thrown code (P0313) I've swapped the coils, no change, and swapped spark plugs as well, i changed my valve cover gasket, and I even changed my CCV ( overdue at 139K ) next thing im going to do is swap...
  11. E46 (1999 - 2006)
    My 2000 323i has had a rough idle, horrible acceleration, at times I won't be able to get over 20 mph and I'll have to restart the engine, and it's died from having too low of RPMs while idling. The engine light doesn't come on so I don't have any codes. I've been told that this is from a bad...
  12. E39 (1997 - 2003)
    Hi i have a e39 540i with the m62 engine and it has stared misfiring so i changed the valve cover gasket and spark plugs as well as switched the coils around. it come up with a cylinder 8 and 5 misfire as well as random misfire code i can't seem to find what the problem is.
  13. E39 (1997 - 2003)
    Brand new to the forum so please excuse me if the answer is elsewhere or if I've posted in the wrong area. I've recently acquired a 1999 528i with high mileage but a meticulous service history. Here's the issue: RANDOM misfire that codes P0300, 301, 302, 305 and 306. I understand that the...
  14. X6 E71 / E72 (2008 - 2014)
    This is my first post and would really appreciate any help with my x6 I bought it 3 months ago 2009 3.5 with 50 K two weeks ago I got a flashing CEL and my mechanic who knows BMW said it was most likely the spark plugs and coils So I changed them all along with a new air filter and new...
  15. E39 (1997 - 2003)
    Hey BMW enthusiasts. I have a problem with my 1997 bmw 540i and would love for your suggestions on how to fix it. First I will give you a description of what happened. My BMW began to have a slightly rough idle, not anything harsh, but a little kick when I was sitting in park, it began to...
  16. E90/E91/E92/E93 (2006 - 2013)
    Hi members! I have a 2008 E92 320i. I replaced my ignition coils as part of the recall 3 months ago and replaced my spark plugs immediately afterwards.As soon as the London cold weather kicked in I started having random (once every week or 2) engine misfires on cylinder 3 on cold starts...
  17. X3 E83 (2004 - 2010)
    Tom Lerich is a BMW savant! My local BMW dealer diagnosed my BMW X3 with a blown head gasket or cracked cylinder head, so I decided to get a second opinion. After researching the internet I came across Lerich Motorsport, in Hudson Ohio. Tom took the time to do a proper diagnosis; he repeated...
  18. E39 (1997 - 2003)
    How useful is "freeze frame data" for an E39 diagnostic over a typical OBDII scanner? I use the $25 el cheapo scanner depicted in this thread when I have an SES light: - Cheapest CAN OBDII scanner on the net that reads DTCs, pending codes, & clears codes But, I often see mention of 'Freeze...
  19. E39 (1997 - 2003)
    I have a BMW x5 3.0; 2 different diagnosis: 1) bad coils and spark plugs, 2) #6 cynlinder misfire-compression and plugs good; intermittent loss of signal to #6 fuel injector. Faulty PCM. See dealer for computer and reprogramming. Help? Anybody seen this type of problem?:cry:
  20. E46 (1999 - 2006)
    So I have a 2005 325i with a M56 engine 117k miles and I have occasionally over the last month been having misfires on Cylinder 6 at start up with a rough idle for about 30 seconds then it feels fine, and the rpms instead of reving up past 1000 rpms and dropping back down to the 750 range will...
Top