[zipstic]

Hi All,

I’ve been having issues with misfires in cylinders 4, 5, and 6 on my N54 2008 335xi coupe over the last 3 weeks. The car will stumble when getting on the boost over 3k RPM and throw a SES light. The car will run without sputtering above 3K RPM if I’m not pushing much boost. The car starts and idles fine – no long cranks or sputtering. The spark plugs do not have any fuel residue on them after letting the car sit for a couple hours after getting to full operating temperature.

-I put in 6 new coils 2 weeks ago
-I put in 6 new Bosch spark plugs ~12K miles ago. I also put in new Bosch plugs in cylinder 5 & 6 last week.
-I had a walnut intake blast ~9K miles ago

I’m currently running the COBB map Stage 1 Sport I8A0S v401. Below are the codes I’m getting.

2AAF – Fuel pump plausibility
29D1 – misfire cylinder 5
29D0 – misfire cylinder 4
29D2 – misfire cylinder 6
29CC – misfires more cylinders

I logged my car a couple times. The STFT and LTFT percentages are pretty much the same in both banks.

http://www.datazap.me/u/zipstic7/bmw...&data=15-16-21

http://www.datazap.me/u/zipstic7/bmw...og=0&data=2-21

I was going to revert back to stock and see if that changes anything. A lot of people will say replace your injectors, but it doesn't seem to have the "classic" injector issue symptoms.

Any advice would be greatly appreciated!

[mike@x-ph.com]

Send the logs to Cobb