E90Post
 


Coby Wheel
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Fuel pump or other?



Reply
 
Thread Tools Search this Thread
      11-20-2014, 10:55 PM   #1
Scrippy
Lord Scrip
Scrippy's Avatar
United_States
1812
Rep
3,013
Posts

Drives: 2011 M3 Coupe
Join Date: Jan 2012
Location: LA,Ca

iTrader: (0)

Garage List
  [0.00]
2007 BMW 335i  [0.00]
Fuel pump or other?

Guys,

So I had a thread on 2AAF fault code and everyone clarified what causes this VERY common code for me. I've been getting the 2AAF code for about 6-8 months now. I clear it and it comes back every time. Now I'm also getting 29E1 as well. My car is stock with no tunes or flashes.

COBB site says - 29E1 - Fuel mixture control 2 - Typically caused by the wrong O2 sensors in the wrong downpipe or a major exhaust leak. Grey wire loom goes to the back pipe, black wire loom goes to the front pipe.
-I've got none of the above issues.

Multiple Forums say - 29E1 Fuel Mixture Control bank 2 common cause faulty fuel injector, ignition coil or spark plug.
-I did the plugs 2,000 ago.
-All coils 25,000 ago.

Any folks who have experienced this please chime in. Of coarse any help in general would be awesome. Thanx yall!
Appreciate 0
      11-21-2014, 02:09 AM   #2
SteveAZ
Captain
60
Rep
654
Posts

Drives: 135i Cab
Join Date: Jul 2012
Location: Phoenix, AZ

iTrader: (5)

Just saw this...you may have a bad/leaky injector.

If it were me I'd pull my plugs and see how they look. If any are wet or black that is likely your problem cylinder and you can start swapping components with bank 1 to see if the problem follows.

Injectors permanently swapped or replaced must be coded.
__________________
2008 E88--Fuel-It! Stage 4 LPFP & PI--PS2 turbos--JB4/MHD--FBO--662whp/604wtq
2011 E90--Fuel-It! S2BL LPFP and PI--PS2 Turbo--JB4/MHD--FBO--546whp/589wtq
2013 Mini JCW--Tune--DP--FMIC--a couple Fuel-It! goodies--265whp/320wtq
2013 F10--JB4/BM3
2015 F82--Fuel-It! Stage 3 LPFP & PI--PS2 Turbos-- JB4/BM3-FBO
Appreciate 0
      11-21-2014, 09:54 AM   #3
Scrippy
Lord Scrip
Scrippy's Avatar
United_States
1812
Rep
3,013
Posts

Drives: 2011 M3 Coupe
Join Date: Jan 2012
Location: LA,Ca

iTrader: (0)

Garage List
  [0.00]
2007 BMW 335i  [0.00]
Quote:
Originally Posted by SteveAZ
Just saw this...you may have a bad/leaky injector.

If it were me I'd pull my plugs and see how they look. If any are wet or black that is likely your problem cylinder and you can start swapping components with bank 1 to see if the problem follows.

Injectors permanently swapped or replaced must be coded.
When I did my plugs last one of them was blackish compared to the rest #4. I #'d them and kept. I thought it was spillage because the oil cap is between 3 & 4. Think it's a head gasket?
__________________
Appreciate 0
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:28 AM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST