[mweisdorfer]

Originally Posted by tello2020

open the dme check the mosfets they are ok FDB 14N30

I think you need to upgrade your DME.

Something is not right in your current DME; it's probably one of your PSU's.


https://www.motivmotorsport.com/prod...for-n54-engine

[twoninetykay]

Hello man, i got the exactly same problem as you had, and i have change close to all the same stuff as you did, did you ever find the problem? if you did please tell me.

[twoninetykay]

Did you ever find the problem, i got the same on my 335



Thanks[/QUOTE]

[Rube]

Originally Posted by twoninetykay

Did you ever find the problem, i got the same on my 335



Thanks

[/QUOTE]

I’m having similar issues in my 2007 335i. I’m in the process upgrading my DME to MSD81. I checked everything else, similar to the person who started this thread. It would have been great if he updated this thread if he ever found the problem.

[twoninetykay]

Yeah, i just got my DME back from repair it didnt change anything :/, I have already changed to new coils, new injectors, new boost solenoids, new vacuum canisters, I've done comp test all cylinders are fine aswell. Damn i cant seem to solve this one haha. Please update me if you find your problem.

[SlowE92]

swap pre 02 sensors and see if the codes follow.

[Rube]

Originally Posted by twoninetykay

Yeah, i just got my DME back from repair it didnt change anything :/, I have already changed to new coils, new injectors, new boost solenoids, new vacuum canisters, I've done comp test all cylinders are fine aswell. Damn i cant seem to solve this one haha. Please update me if you find your problem.

What was repaired on the DME?

[twoninetykay]

Originally Posted by Rube

What was repaired on the DME?

The mosfets

[Rube]

Originally Posted by twoninetykay

The mosfets

My DME was defective, i picked up another MSD80 and had it cloned with my stock DME's programming. For more details about all the troubleshooting i did, please see my original thread. (hope this helps you out)

https://www.e90post.com/forums/showthread.php?t=2042407

[twoninetykay]

Originally Posted by Rube

My DME was defective, i picked up another MSD80 and had it cloned with my stock DME's programming. For more details about all the troubleshooting i did, please see my original thread. (hope this helps you out)

https://www.e90post.com/forums/showthread.php?t=2042407

I see, i'm pretty sure i just found out the my problem aswell, after i put in the repaird DME i now for some reason can see fault codes that i didnt see before, it's telling me that o2 sensor 2 got a fault. That code wasnt there before i sent the DME to repair. Ive seen one guy on youtube who had the exactly same problem, he could not see codes aswell but after his DME got repaird he could. i Will change the o2 sensor and see.