Codes... And Solutions

ryanmamikel

Specialist
Nov 5, 2016
58
27
0
London Ontario, Canada
i like it ... wana start with one of mine ? haha

2F7E - UNKNOWN DESCRIPTION via jb4 and mhd shows NO CODES!

I just looked up the 2F7E code, The results were DME:Engine switch off-time, plausibility
There was no fault code description, it is possible that if I had the last 7 of your VIN that it may come up with more information. Generically it comes up with no fault code description.

It appears it could also be a Superknocking faults as well.
 

faraway1971

Lurker
Nov 10, 2016
22
27
0
Munich - Germany
Maybe this helps a little bit more. If I am not totally wrong, the fault codes should not differ too much between N55/ N54. Feel free to correct me, if I am wrong. Always willing to learn ... Sorry if double post ...
 

Attachments

  • BMW N55 Diagnostic Fault Codes.pdf
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Cheezy

Lieutenant
Nov 7, 2016
610
224
0
Toledo Ohio
Screenshot_20161113-020809.png
I got this tonight right after I shut off my car, I have been thinking for a couple day that maybe my battery has been getting weak, I checked it the other day at 11.86v. I'm most likely going to replace it tomorrow, register it, and clear codes.
 

Cheezy

Lieutenant
Nov 7, 2016
610
224
0
Toledo Ohio
Weird my post vanished.

I have that shadow code 2FDB
I’m only stage 1 custom tune with Bmw p exhaust should I worry?
I’m going FBO next week so I don’t want any underlying issues!
Thanks guys
Youre post is still there. Ive heard 2fdb is related to the hpfp software, but not a sign of failing hpfp. You will get a shadow code for your new stg2 lpfp tho, just basically saying it draws more current than intended. No big deal. If youre concerned with 2fdb maybe take it to a dealership and ask them to update the software if its not current.
 

Benji335i

Specialist
Jan 18, 2018
66
21
0
Auckland, New Zealand
Ride
335i DCT
Youre post is still there. Ive heard 2fdb is related to the hpfp software, but not a sign of failing hpfp. You will get a shadow code for your new stg2 lpfp tho, just basically saying it draws more current than intended. No big deal. If youre concerned with 2fdb maybe take it to a dealership and ask them to update the software if its not current.
Only just seen post buddy!
Thanks for the reassurance. Pick up car today full bolt on haven’t put the stage 2 LPFP yet!!
Thanks again bro