misfire

Hello everyone, Car: BMW 328i 2013 Convertible I've been trying to figure out the reason for my car misfires. I've tried a few things however they come back after a couple of weeks or months. Current behavior: Misfiring when accelerating, more noticeable when going uphill. The check engine...

2009 BMW 328i with N51 engine and 142k miles Long time reader, first time poster. I have replaced the coils with new bosch coils packs, spark plugs were replaced with laser platinum NGK. This fixed the misfire issue for a few months. It then was back, misfiring on cylinders 4-6. I replaced the...

Okay so, last time I posted on here requesting help, I had just bought a non-running 03' 530i for an extremely cheap $350. The only issue that stopped it from running was the fuse box under the passenger seat. It was completely fried, lots of water had gotten down there. After I fixed that, she...

Under hard acceleration if you push the vehicle it will throw an 'engine malfunction' yellow error and go into limp mode (it hesitates and stumbles). Shutting off and restarting car clears the message and it operates normally. It drives normally otherwise; no check engine light is lit. If you...

I have a e36 318i '95 manual. A month ago the car was running fine with no troubles besides needing a new alternator. As of recently the car would have trouble idling as it would jump from 500 to 1500 rpms, however when driving in would jerk as i left off the throttle around 1500 to 2000 rpms...

(First time posting to a forum) I have a 2003 540i 6 Speed that is misfiring on cylinders 1-4. I have replaced valve cover gaskets, all coils, all plugs, CCV, intake manifold gaskets (including CCV gasket, and both throttle body gaskets). I have also replaced the jet pump that sits near the back...

Hello all!!! So... I bought a 2015 M135i in August which I've fallen in love with, but I've got abit of an issue that needs working out. The car had a full service in July including spark plugs. I had a misfiring issue in November and the spark plugs got changed along with coil 3. Now, 3 weeks...

The car was running fine except for what I thought might be a leaky injector due to a slightly rough idle and non-oil smoke and a few error codes related to that. I took the injectors out and had them ultrasonically cleaned, replaced the filterbaskets and seals on the injectors, and had the...

I noticed my 2001 325i with 150k miles was misfiring. The previous owner told me the spark plugs and coil packs had only been replaced once in 75k miles so I decided I'd replace all 6 of the spark plugs and coil packs, but that did not fix the misfire. So I decided to get an OBDII reader and see...

Hey guys, could really use a bump on this thread. Ive got 4 o2 sensor codes showing lean upstream and downstream as well as a code for connection to pcm. Car has been stumbling at times for months before the codes showed up. Also, having intermittent random misfire codes. Could use some...

2013 528i XDrive...N20B20 Engine Got error code P0304 for a misfire in cylinder 4. I have an extra new ignition coil and want to swap it out, but want to make sure which cylinder is which. I think 1 is closest to the front of the car, then 2, then 3 and 4 is closest to the back (the...

Hello everyone. Having an issue with my '04 325ci M56. Couple weeks ago started idling rough. It was very seldom misfiring. Then it got worse, and I let it go until it stalled on me the other day. Figured it was time to bite the bullet and cringe as I hooked up the ol' OBD2. 2742: cyl 1...

Bought January 2019 with 238k miles. First BMW. After a couple of months, unless I "nursed" the accelerator, the car would misfire, then there would be a constant SES light and the computer seemed to shut off the offending coil pack(s) until the car was shut down and re-started. After that the...

Hi guys, I am new to these forums. Someone sold me this car for a pretty good deal, knowing that it needed work. It feels like it has a misfire because it has surely lost power, it shakes like it is misfiring, and sounds weird. No weird engine noises though, just the exhaust. Trying to fix...

I have an 08 x5 with ~90K miles on it. I just got an oil change with synthetic oil recently. Last night I drove the vehicle and it was fine. This morning, it was -10F and when I went to start my car, it started up pretty easily but the engine was misfiring badly and I got the check engine...

Hi Everyone I hope someone can help. My 1997 328i Manual has a weird issue: Every now and then the car has a random, single, momentary, violent jerk when accelerating (hard or not), and also when idling. She idles sweetly, then suddenly the rev counter drops for a split second before the...

I have a 1998 BMW 528i e39. It has about 140,000 miles on it. I***8217;m not mechanically inclined, but I love this car very much and want to be sure that I take the proper steps to maintain it. Any advice or thoughts are appreciated! The car was running totally fun as recently as this past...

So I was driving yesterday everything fine keep in mind. park o go into a store come out start my car and my car starts to shake like crazy. I knew right away it was at least a misfire. Managed to limp to the nearest Autozone to get the check engine light read(Which just came on as the car...

Everyone - just posted this, but do not see it on the thread. Apologies if this appears twice. About a month ago, the SEL on my 2004 325 popped on. Had the code read and seemed like it was time to change out the spark plugs. The car has 91K miles on it. I replaced all plugs w/ NGK plugs and...

Hello, On my way home my car started shaking and sputtering. I was able to get it diagnosed. Had a Cylinder misfire in #1 and 5#. I replaced all my spark plugs with Bosch double plat and coil packs #1 and #5. I noticed a little oil leaked into cylinder #3, I removed all the oil but some...