missfire

So I have a 2004 bmw 325ci, and I have replaced the mass air flow sensor, fuel filter with fuel pressure regulator, fuel pump, fuel sending unit, and checked fuel pressure to rail via Schrader valve. All lines have hose clamps and they are tightened down even the fuel pressure regulator line...

Hi all, new to forum but have found loads of help from lurking and reading past posts to fix my BMW. Little bit of background on my car: Have a 2002 330ci manual, about 125k mi and as far as I can tell is pretty much original everything (except what I have done to it) brake buster vacuum...

Hello all! I dont actually own one, but im a BMW lover and im considering buying one. I have one in sight for a fair price. Problem is, the guy is telling me the car is misfiring, that it runs fine but starts missfiring on "neutral positions". He also says its an injector leaking fuel, that...

Hi, I got a bmw 320i e46 - 05 (m54 engine) i got a missfire on cylinder 2 and I have done a couple of tests, i swapped places with the sparkplug module and sparkplug with another cylinder, i also swapped places on the fuel injector but the missfire does not swap cylinder. Any help would be Great.

thank you for reading, I am new to BMW e46 fanatics! I have a 2001 330CI e46 M54 that I have owned for two years. The vehicle drives like a charm until it starts to missfire then, I lose tourqe and power and the engine starts shaking and Rev becomes unstable on Idle. This used to happen...

Hey everyone, I need help guys this is my last resort. I have been having trouble with this car for the past 2 months. I have not been able to drive it except to see if it is fixed. So any help would be greatly appreciated. So about 2 months or so ago I was driving the car and there were no real...

hello, I got following problem on m54b30 engine: under load in 4000-5000rpm range I got misfire with fuel cut off (p1353) on cylinder 6th. I tried swapping coils, changed spark-plugs (NGK-platinum), changed air filter, changed fuel filter, swapped injectors, performed smoke test, checked...

Just bought an 03 zhp sedan w/ 145k and I love the car except this one issue. I've had it about a week now and it drives flawlessly once it's warmed up, but every morning I experience the rough idle and a violent shaking. By the way it's about 80 degrees so it's not an ambient temperature issue...

So yesterday I was driving my 323i from work. It started lagging and wouldn't pick up speed at all. So i get home barley making it. And i turn off the car and turn it back on and when I would rev up the engine the car would like shake around 2 to 3 rpms. I go inside and get the obd scanner and...