My 04 330i does something similar- it starts fine in the morning ( a little rough) but for the rest of the day it cranks longer and when it finally starts runs very rough blowing black smoke until it cleans up and runs fine-- New ICV, PCV system, injectors cleaned and balanced, new plugs, many other parts but same problem-- You mentioned intake pressure in this video- How does that get adjusted or purged? I believe this is my problem? You help is greatly appreciated as I have had it at 2 bmw shops and they cant figure this out.
Interesting with an IAC valve on a drive by wire car. I did not expect that. Thanks for sharing.
My 04 330i does something similar- it starts fine in the morning ( a little rough) but for the rest of the day it cranks longer and when it finally starts runs very rough blowing black smoke until it cleans up and runs fine-- New ICV, PCV system, injectors cleaned and balanced, new plugs, many other parts but same problem-- You mentioned intake pressure in this video- How does that get adjusted or purged? I believe this is my problem? You help is greatly appreciated as I have had it at 2 bmw shops and they cant figure this out.
Hello,what causes a random misfire at start up on a 2004 BMW 545i,p300.the plugs and coils have been changed.