BMW M3 Forum (E90 E92)

BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read


Go Back   M3Post - BMW M3 Forum > E90/E92 M3 Technical Topics > Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications
 
E92 Lighting
Post Reply
 
Thread Tools Search this Thread
      08-22-2012, 09:25 AM   #45
e9xm3
New Member
e9xm3's Avatar
0
Rep
10
Posts

 
Drives: BMW e92 M3
Join Date: Aug 2012
Location: australia

iTrader: (0)

those codes are for, dsc, steering angle calibration, etc...
Appreciate 0
      08-22-2012, 10:28 AM   #46
RBB
First Lieutenant
RBB's Avatar
5
Rep
344
Posts

 
Drives: E92 M3
Join Date: Mar 2012
Location: NOVA

iTrader: (10)

So, W///, the car is running just fine with the new actuator? I've always read and was also told by the dealer that the new actuator had to be initialized with their software or Autologic. Is this not the case?
Appreciate 0
      08-22-2012, 10:56 AM   #47
W///
Major General
W///'s Avatar
82
Rep
5,394
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Quote:
Originally Posted by RBB View Post
So, W///, the car is running just fine with the new actuator? I've always read and was also told by the dealer that the new actuator had to be initialized with their software or Autologic. Is this not the case?
I thought so too, that's what I read from M5 board. After putting the engine back together, I used the BT tool to clear all the codes.... hoped for the best... started the engine and presto, no limp mode

Maybe all you needed to do is to clear the SES code, I have no idea. Drove the car to work this morning, so far so good.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      08-22-2012, 04:56 PM   #48
W///
Major General
W///'s Avatar
82
Rep
5,394
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Here's my write-up. Please let me know if it's not clear (it's my first attempt).
http://www.m3post.com/forums/showthr...4#post12551474
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      09-13-2012, 11:18 PM   #49
hvd.kevin
Lieutenant Colonel
hvd.kevin's Avatar
United_States
19
Rep
1,926
Posts

 
Drives: BMW
Join Date: Jan 2009
Location: NorCal/SoCal

iTrader: (4)

thanks for posting. All my lights came on this AM too. I don't have a code reader so cannot say what it is exactly. Base on your write up, I think I'm in the same boat. Great DIY write up too.
__________________
Appreciate 0
      02-22-2013, 04:14 AM   #50
never dies
New Member
0
Rep
6
Posts

 
Drives: E46 M3
Join Date: Jun 2010
Location: Dubai

iTrader: (0)

Sorry to resurrect an old thread...I'm kind of in the same boat here but my problem seems to be a bit more complexed since everything mentioned here was tried and tested and then some. Here goes..

Here's my issue in details (E92 M3 US-Spec):

So my S65 engine has failed due to a bad/incomplete rebuild and all my cylinders were experiencing piston lashing. Given the cost of the repair vs swapping the motor out, I went ahead with a 2nd hand motor (22,000km) from a RHD E90 M3. Engine swapped, tests and service done, car delivered back and I couldn't ask for more.

However, one month later the car started displaying at random a weird problem. Some mornings it would fire up immediately, and some other mornings I had to try a few times till it fired (would start and immediately bog down). Sometimes after a drive and parking the car for a few hours, it would do the same too (engine is NOT cold). Until the day came where it wouldn't fire up and keep idling at all. Car sent back to indy and diagnostics run. Turned out with these errors:

- 2B25 Throttle-valve monitoring; Bank 1
- 2B26 Throttle-valve monitoring; Bank 2
- Unidentified fault Code 2B57

The following has been done in the given order:

1) Replaced throttle sensors (both banks). No change.
2) Replaced throttle actuators (both banks) with 2 sets (from working E92 M3s). No change.

We have managed to start and keep the car idling, but it's always on limp mode (RPM 3K max). I have started the car and left it idling with the airbox disconnected from the engine (but connected it to the electrical socket and vacuum line) to monitor if the actuators levers are trying to activate the ITBs. NO MOVEMENT at all. The ITBs can be operated manually so they are not jam stuck.

So after we have confirmed the hardware part, we measured the actuators sockets power supply. Both measured 13.7V with the car idling. I have even connected one of the old, functional actuators (free, no load on it i.e. not connected to the ITBs) to the harness. Pre-drive check you could see the actuator lever moving a few tiny degrees (the click you hear from engine bay when you put the key in "ignition"). However, once the engine fired up, there was no movement from the actuator.

My questions is: Since power is obviously supplied to the actuators, what could the reason be for them not to function. Actuator socket is 9-pin, any idea which DME pins are the corresponding ones? Anybody who has faced this issue before?

Thank you and looking forward to hearing from you.
Appreciate 0
      02-25-2013, 09:23 AM   #51
CP Louie
New Member
0
Rep
5
Posts

 
Drives: E46 M3 Race Car
Join Date: Feb 2013
Location: United States

iTrader: (0)

I understand the limp mode..
Appreciate 0
      09-12-2013, 11:20 PM   #52
panaderooo
Registered
0
Rep
2
Posts

 
Drives: 2007 335i
Join Date: Aug 2013
Location: wilmington, ca

iTrader: (0)

so did you fix this ? I got it today
Appreciate 0
      09-12-2013, 11:21 PM   #53
panaderooo
Registered
0
Rep
2
Posts

 
Drives: 2007 335i
Join Date: Aug 2013
Location: wilmington, ca

iTrader: (0)

I have a 2008 M3 coupe
Appreciate 0
      09-12-2013, 11:24 PM   #54
1MOREMOD
2014 Track Days - 11|Ridge 1:52:24|Pacific 1:35:72
1MOREMOD's Avatar
United_States
172
Rep
12,901
Posts

 
Drives: Race car->
Join Date: Mar 2009
Location: check your mirrors

iTrader: (5)

Been covered. Cruise by local high school. Limp mode fixed.
Appreciate 0
      09-13-2013, 07:17 AM   #55
W///
Major General
W///'s Avatar
82
Rep
5,394
Posts

 
Drives: 2008 E92 M3/1999 E36 M3 Coupe
Join Date: Sep 2011
Location: SC

iTrader: (12)

Quote:
Originally Posted by panaderooo View Post
so did you fix this ? I got it today
Mine ended up being the throttle actuator. But the only way to know is if you got the codes read.

Quote:
Originally Posted by 1MOREMOD View Post
Been covered. Cruise by local high school. Limp mode fixed.
Super helpful, thanks.
__________________
2008 E92 M3: Sparkling Graphite | Bamboo Beige | 6MT | CF Roof | HRE | Catless Eisenmann Race | BPM Sport | Swift | Arkym | Mode Carbon | M.Perf
Appreciate 0
      09-13-2013, 09:24 AM   #56
1MOREMOD
2014 Track Days - 11|Ridge 1:52:24|Pacific 1:35:72
1MOREMOD's Avatar
United_States
172
Rep
12,901
Posts

 
Drives: Race car->
Join Date: Mar 2009
Location: check your mirrors

iTrader: (5)

so serious! carry on.
__________________

02 Tiag e46 M3|6MT|GC plates|MCS c.o.|GC bars|GC race control arms|GC bushings|BW eng. & tran. mounts|subframe kit|BW race shifter|BW Jaffster|Euro header|BW exhaust|K&N c.a.i.|Epic race tune|Rouge pulleys|Seibon CF hood|CSL bumper|ST-40|XR-2|SS lines|half cage|Recaro profi|Profi 2 harness|BMWpedals|BW studs|
Appreciate 0
      05-24-2014, 03:41 PM   #57
MikeD
Banned
5
Rep
445
Posts

 
Drives: E90 M3 6MT
Join Date: Apr 2014
Location: San Francisco

iTrader: (0)

Hey guys, I got the p1268 code too. Is there a part number for the torx screws that bolts the TA housing down? I'm paranoid I will loose a screw as I plan on DIY
Appreciate 0
Post 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 09:37 PM.




m3post
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