E90Post
 


Lux Angel Eyes
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Help! My car seems to have lost a step



Reply
 
Thread Tools Search this Thread
      09-18-2009, 08:37 PM   #1
togatown
Private
0
Rep
97
Posts

 
Drives: 2011 Audi S4
Join Date: Feb 2009
Location: Torrington, CT/Saratoga, NY

iTrader: (1)

Help! My car seems to have lost a step

My 2007 (Sept 06 build, 31k) 335 just got out of the dealer, it apparently had a bad #6 fuel injector according to the code it threw. The dealer replaced the fuel injector, but now I swear it doesn't feel turbocharged anymore. The torque doesn't seem to be the same and the car seems louder revving through the gears. It actually reminds me more of an E46 M3. Could there be something wrong now with the turbos, wastegates or VANOS?

The work order doesn't indicate any software update. I bought the car as a CPO from another dealer and its history showed one new fuel pump already and had a VANOS replacement, which my SA said was basically a new cylinder head.

I appreciate any shared similar situations or ideas?
Appreciate 0
      09-18-2009, 09:34 PM   #2
Highflyr
Captain
Highflyr's Avatar
United_States
11
Rep
704
Posts

 
Drives: 08 335i E90
Join Date: Feb 2009
Location: Ellicott City, MD

iTrader: (3)

Send a message via AIM to Highflyr
maybe this will give you something to go by. Maybe adaptation values were not set correctly



SI B 12 26 08
Engine Electrical Systems October 2008
Technical Service

SUBJECT
Injector Removal, Installation, and Replacement Procedures


MODEL
E60, E61, E71, E82, E88, E90, E92, E93 with the N54 and N63 engines


INFORMATION
During the removal and reinstallation or replacement of a fuel injector, it is very important that all of the recommended repair instruction procedures be followed precisely.

For example, the N54 engine TIS Repair Instruction, RA 13 53 310 Removing and installing or replacing an injector (N54), contains very specific information when performing repairs to the injectors on the N54 high-pressure fuel system.

It is very important that the ignition coils be removed prior to opening any high-pressure fuel connection, as described in SI B12 27 08.

Each injector is adjusted to the DME, based on its production calibration and cylinder position in the engine. If an injector is replaced, the individual calibration (adjustment value) must be read off of the new injector and entered into the DME.

If the DME is replaced, all injector adjustment values must be entered into the replacement part after the programming / coding session.

Failure to perform this procedure correctly could result in starting and engine performance problems.


This procedure is found in diagnostics using the following path:

Service Functions / Engine Electronics / Adjustment programs / Adjust injectors

For each injector, the adjustment value is entered according to the installed cylinder position.

Note:

Due to conversions taking place in the DME control unit, the final digit of the values entered may differ slightly after they have been stored. This does not indicate an input or control unit error.
__________________
Appreciate 0
      09-19-2009, 08:47 AM   #3
togatown
Private
0
Rep
97
Posts

 
Drives: 2011 Audi S4
Join Date: Feb 2009
Location: Torrington, CT/Saratoga, NY

iTrader: (1)

Thanks, I am going to try to schedule an appointment at my dealer for next week and see if they can find something, it is definitely not the car it was before.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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
Forum Jump


All times are GMT -5. The time now is 04:42 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
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