E90Post  


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > DIY Guides > [DIY] Electric Power Steering Conversion



Reply
 
Thread Tools
      11-28-2024, 05:01 AM   #67
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

Quote:
Originally Posted by Kiesa View Post
Awesome DIY. just did this myself a couple days ago, and everything works even without coding which I did not expect.. but for peace of mind I wanted to code the eps to my car correctly, but ran into an issue in winkfp - I'm missing the 16epspl2.ipo file so i cannot change the vin on the eps module.. my current ZB# on the eps is 6792947.
Tried downloading many versions of daten files but never found the needed .ipo file.. if anyone has any idea how to solve this i would appreciate any pointers..

Thanks in advance!
I think that You can try change VIN by Tool32 if you are running problems with winkfp.
Appreciate 0
      12-06-2024, 10:11 AM   #68
Geran
Enlisted Member
United_States
12
Rep
37
Posts

Drives: 2011 BMW 135i
Join Date: Oct 2023
Location: Maryland

iTrader: (0)

Are there any cars with the N55 engine from that factory that had EPS? Trying to find the right size belt for it.
Appreciate 0
      12-06-2024, 05:44 PM   #69
ptpending
Brigadier General
ptpending's Avatar
710
Rep
3,397
Posts

Drives: e81
Join Date: Dec 2013
Location: Poland

iTrader: (1)

f-series n55 cars have EPS
__________________
E81 2007 130i 6cylinder Montego blue
Retrofits: Harman Kardon, High-beam assistant, Removable tow hitch. Auto-dim folding exterior mirrors. Lumbar support. Perfomance Brakes.
Appreciate 0
      12-12-2024, 01:07 AM   #70
Kiesa
New Member
0
Rep
19
Posts

Drives: e90 320d
Join Date: Dec 2018
Location: Europe, Lithuania

iTrader: (0)

Quote:
Originally Posted by kolopn View Post
I think that You can try change VIN by Tool32 if you are running problems with winkfp.
Thank you for the idea, I ran the c_fg_schreiben job with my vin on the EPS module and the job ran fine. I can see the correct VIN at least using Tool32 when i run the c_fg_lessen job, so it kinda worked but UIF on Inpa still shows the old win.. so atleast I'm one step closer..
Appreciate 0
      12-12-2024, 03:24 AM   #71
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

Check if argument AIF_lesen is still giving old vin. If yes, change that with AIF_schreiben and it should work. Everything in tool32 of course.
Appreciate 0
      12-13-2024, 04:08 AM   #72
Kiesa
New Member
0
Rep
19
Posts

Drives: e90 320d
Join Date: Dec 2018
Location: Europe, Lithuania

iTrader: (0)

Quote:
Originally Posted by kolopn View Post
Check if argument AIF_lesen is still giving old vin. If yes, change that with AIF_schreiben and it should work. Everything in tool32 of course.
Thank you once again for the idea. Tried doing so and ran into a roadblock - I can only see and run the aif_lessen job, the aif_schreiben is not visible at all.. so I can only read the data but I cannot write. Trying to figure this one out now.
By the way for extra info im using EPS_90.PRG file in tool32 which i confirmed in inpa's Ident field
Appreciate 0
      12-13-2024, 01:56 PM   #73
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

There should be option to write VIN in NCS when you are sececting specific job to do.
Appreciate 0
      12-16-2024, 01:16 AM   #74
Kiesa
New Member
0
Rep
19
Posts

Drives: e90 320d
Join Date: Dec 2018
Location: Europe, Lithuania

iTrader: (0)

Quote:
Originally Posted by kolopn View Post
There should be option to write VIN in NCS when you are sececting specific job to do.
Thank's for your help, but I think it's time to give up.. Tried running a couple ncs expert jobs as well, like fgnr schreiben and some other one I cant remember but ofcourse that did not do the trick.. I think winkfp is the only option for me. Now all I have to do is find the damn 16epspl2.ipo file..
Thank you for your efforts though.. Appreciate it a lot.
Appreciate 0
      12-30-2024, 09:17 AM   #75
jeandersson
Registered
2
Rep
3
Posts

Drives: BMW E92 325ix
Join Date: Dec 2024
Location: Sweden

iTrader: (0)

I'm building a track car and would like to use EPS without integrating with the rest of the cars control units.
Is it correct that I can connect the power supply, without connecting the CANBUS and the EPS will work (lighter turning of steering wheel but without the ability of fine tuning)?
Or will "wake-up" signal still be needed?
Appreciate 0
      12-30-2024, 11:41 PM   #76
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

You will need still can to be connected due to the fact that power supply will be only for motor, but motor itself will not be activated due to lack of data from at least szl and dsc, so you can put can wiring, and without coding it still should work. But basic coding will be basically just adding VO, so still easily can be done, considering that you still need to remove plenty of vo codes if you are building race car.
Appreciate 0
      02-17-2025, 11:12 AM   #77
Ciccioo96
New Member
Italy
0
Rep
5
Posts

Drives: Bmw 335i e92
Join Date: Feb 2025
Location: Novara

iTrader: (0)

Hi my friend, i have a requisiti for you. I'm not very expert with ncs expert and winkfp. Can you do a video were i can see how to do the coding? I have an e92 335i n54 2007
Appreciate 0
      02-17-2025, 02:06 PM   #78
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

Quote:
Originally Posted by Ciccioo96 View Post
Hi my friend, i have a requisiti for you. I'm not very expert with ncs expert and winkfp. Can you do a video were i can see how to do the coding? I have an e92 335i n54 2007
Hello! I am not able to do a video because I no longer have this car, but give me a PM, and we can think how to connect via for example Skype or WhatsApp, so I can direct you "live" what to click, or even maybe remote coding via teamviewer
Appreciate 1
      03-01-2025, 01:31 PM   #79
Ciccioo96
New Member
Italy
0
Rep
5
Posts

Drives: Bmw 335i e92
Join Date: Feb 2025
Location: Novara

iTrader: (0)

So my situation is this:
All cable are ok. Changed vin number with winkfp, i controlled with inpa if the vin was correct, it was. Now i open ncs expert but in cas of frm ther isnt $1cb but only $1ca so i dont done nothing, even without this step everything still works fine driveability is great. but my eps was on an e93 and is not too bad drive like this coding, but I want to try e90 setting. can you help me?
Appreciate 0
      03-02-2025, 02:13 AM   #80
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

So you have to add $1CB to FA list in CAS and FRM, with that EPS will be available to coding in NCS.
Appreciate 0
      03-02-2025, 10:10 AM   #81
Ciccioo96
New Member
Italy
0
Rep
5
Posts

Drives: Bmw 335i e92
Join Date: Feb 2025
Location: Novara

iTrader: (0)

Okay, i have do all thing. How can i download the trc file, modify and re upload?

Last edited by Ciccioo96; 03-02-2025 at 10:47 AM..
Appreciate 0
      03-27-2025, 05:17 AM   #82
bingosplash
Registered
0
Rep
3
Posts

Drives: 2007 335i e93
Join Date: Mar 2025
Location: italy

iTrader: (0)

Help with CAN cable?

Hello, kolopn!!

Thank you for this fantastic tutorial! YouÂ’ve inspired me to start this project.

I've already bought the steering rack, and luckily it has all the connectors attached and cut (power supply and CAN cable).

Unfortunately, I know NOTHING about CAN BUS (even though I'm trying to learn), so could you please explain in detail how to make the CAN cable?

I understand that I need a 3-wire cable and the CAN connector that goes to the steering rack (61 13 8383300), but how do I insert the correct pins into the right positions in the connector? Is there a wiring diagram to follow, or do I just guess?

Also, regarding the connection of the Hi-Low CAN and PT-CAN lines, where exactly should I tap into them? Near the DME?

Okay, so basically, I need to cut the cable in half and insert a third connection, turning them into T-cables, right?

Thank you so much for helping me with my doubts!
Appreciate 0
      03-27-2025, 05:20 AM   #83
bingosplash
Registered
0
Rep
3
Posts

Drives: 2007 335i e93
Join Date: Mar 2025
Location: italy

iTrader: (0)

Ciao Ciccioo96 !! sto cercando anche io di fare questo progetto, e ho visto che sei italiano. potrebbe essere molto utile, ho commentato sotto chiedendo informazioni per il cavo CAN, che non ho idea di come dovrei fare, se ti va puoi rispondermi in italiano sotto quel commento per capirci meglio, grazie.!

english:
"I'm also trying to work on this project, and I saw that you're Italian. It could be very useful. I commented below asking for information about the CAN cable, as I have no idea how to proceed. If you’d like, you can reply to me in Italian under that comment so we can understand each other better. Thanks!
Appreciate 0
      03-28-2025, 01:06 AM   #84
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

Hello!

Thank you for your kind words!

CAN bus is network in car for data exchange. EPS is communicating via PT Can network where “PT” stands for powertrain. It differes from ordinary CAN by speed of data transmission.

What you need to do is to create three wire loom which consist of two Hi and Low PT Can wires (different type of data frames) and wake up line for that. I attached picture of pinout below. Easiest way to find those cable where you can take data is to connect them in DME Box so you don’t have to go through firewall to inside of the car. Same for power supply - originally power supply for EPS is taken from fuse near the battery, but easier way will be my solution with fuse inside engine bay. If you have any more question please don’t hesitate!

Attached Images
 
Appreciate 0
      04-03-2025, 11:52 AM   #85
bingosplash
Registered
0
Rep
3
Posts

Drives: 2007 335i e93
Join Date: Mar 2025
Location: italy

iTrader: (0)

Quote:
Originally Posted by kolopn View Post
Hello!

Thank you for your kind words!

CAN bus is network in car for data exchange. EPS is communicating via PT Can network where “PT” stands for powertrain. It differes from ordinary CAN by speed of data transmission.

What you need to do is to create three wire loom which consist of two Hi and Low PT Can wires (different type of data frames) and wake up line for that. I attached picture of pinout below. Easiest way to find those cable where you can take data is to connect them in DME Box so you don’t have to go through firewall to inside of the car. Same for power supply - originally power supply for EPS is taken from fuse near the battery, but easier way will be my solution with fuse inside engine bay. If you have any more question please don’t hesitate!
Hello! thank you for the Help! IT WORKS! after 2 years heavy steering is gone, WOOF!!

i didn't do any coding, simply because of the photo attached ot it: when i go and look for my EPS module on Winkfp the system can't find it, gives out this error code (the one it shows). i tried updating my daten files (i found a thread where they gave out daten files). but no luck

i don't have any problem leaving it like that, the only real issue is that i have a E90 rack on a E93, and the driving is maybe a little too soft.

do you have any help to navigate this further?

(by the way, when flashing the EPS module on winkfp i tried doing this: open the program, selected "comfort" mode, from now on if i select F1 (enter ZUSB) it comes with the error. i can open "update ZUSB" and a whole list of modules will come up)
Attached Images
 
Appreciate 0
      04-04-2025, 08:53 AM   #86
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

Are you choosing ZBNumber or typing it manually? Normally you should choose one from the list. To be honest to get right vin you can also just change aif in tool32. But to be able to code eps you have to put FA code via ncs to frm and cas. Than ncs will see EPS and will allow you to code it.
Appreciate 0
      04-18-2025, 09:03 AM   #87
stresss
New Member
0
Rep
12
Posts

Drives: E90 325i
Join Date: Oct 2020
Location: MS

iTrader: (0)

Hello everyone. This seems like a great idea and i want to give it a go. Did anyone do it on older e90? Mine is from 2005, is there a way to check if the coding and everything is possible on my old girl?
Appreciate 0
      04-18-2025, 04:03 PM   #88
kolopn
Private First Class
55
Rep
108
Posts

Drives: F32 435i, E92 325i N52B25
Join Date: May 2023
Location: Poland

iTrader: (0)

I think it should be okay. Check if in 2005 there was EPS with parts list in other variants but mine car was also Pre-Lci.
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 10:54 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2025, 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