Wiring diagram for MS41.0 ECU?
Page 1 of 2 12 LastLast
Results 1 to 10 of 17
  1. #1
    ECU Frier
    BFI Stalwart
    stickle's Avatar
    Join Date
    Apr 2012
    Location
    Northants, UK
    Posts
    631
    Car Specs:
    Year
    1997
    Model
    E36
    Engine
    328
    Fuel
    Petrol
    Thanks
    90
    Thanked 352 Times in 224 Posts


    Donate Please click the
    image to support
    BMWForums.info
    Click Here To Contribute To Our Site

    Wiring diagram for MS41.0 ECU?

    Does anyone have this showing what pins do what?

    Mainly need where ignition is and wires required to check ECU using INPA

  2. #2
    But you can call me cat-snake.
    Site Admin
    Ferret's Avatar
    Join Date
    Mar 2012
    Location
    Lincolnshire
    Posts
    7,642
    Car Specs:
    Year
    2001
    Model
    E46
    Engine
    330
    Fuel
    Momentum
    Thanks
    4,286
    Thanked 5,095 Times in 3,168 Posts



  3. The Following User Says Thank You to Ferret For This Useful Post:

    stickle (17-08-2012)

  4. #3
    ECU Frier
    BFI Stalwart
    stickle's Avatar
    Join Date
    Apr 2012
    Location
    Northants, UK
    Posts
    631
    Car Specs:
    Year
    1997
    Model
    E36
    Engine
    328
    Fuel
    Petrol
    Thanks
    90
    Thanked 352 Times in 224 Posts


    thanks, i think i got it all wired up.

    just need to test !

  5. #4
    ECU Frier
    BFI Stalwart
    stickle's Avatar
    Join Date
    Apr 2012
    Location
    Northants, UK
    Posts
    631
    Car Specs:
    Year
    1997
    Model
    E36
    Engine
    328
    Fuel
    Petrol
    Thanks
    90
    Thanked 352 Times in 224 Posts


    this is my on the bench flasher for MS41 ECUs

    from this

    2012-08-17 10.34.48 by JamesStillE36, on Flickr

    to this

    2012-08-17 12.49.45 by JamesStillE36, on Flickr

    and my new toy for flashing the chip on the bench for MS41 ecu (so can fix bricked ones to)

    2012-08-17 19.46.33 by JamesStillE36, on Flickr

  6. #5
    ECU Frier
    BFI Stalwart
    stickle's Avatar
    Join Date
    Apr 2012
    Location
    Northants, UK
    Posts
    631
    Car Specs:
    Year
    1997
    Model
    E36
    Engine
    328
    Fuel
    Petrol
    Thanks
    90
    Thanked 352 Times in 224 Posts


    well, i made the flasher/adapter for bench but INPA sees it on and igintion on but cant read it :(

    does anyone know what wires are needed connected for ECU for inpa to read it?

  7. #6
    BFI Member
    TheEnd's Avatar
    Join Date
    Apr 2012
    Location
    Birmingham
    Posts
    139
    Car Specs:
    Year
    1998
    Model
    E39
    Engine
    540I
    Fuel
    Petrol
    Thanks
    19
    Thanked 121 Times in 70 Posts


    You should be fine with power and earth, which are two wide pins in the bottom left corner of the plug, 26 and 28 I think, a switched live from the ignition, and the K line on pin 88.

    I never wired in the ignition sensing part of it and it has worked OK.

  8. #7
    ECU Frier
    BFI Stalwart
    stickle's Avatar
    Join Date
    Apr 2012
    Location
    Northants, UK
    Posts
    631
    Car Specs:
    Year
    1997
    Model
    E36
    Engine
    328
    Fuel
    Petrol
    Thanks
    90
    Thanked 352 Times in 224 Posts


    cheers, i will give it another try.

    i was wiring from ecu connector to 20 pin obd1 connector to my inpa serial cable.

    works great on car, just cant get it on desk :(

    using Pins 26,28,88,49 and 60

    i could strip back an odb2 connector and put that on the ecu connector, do you know what wires go where lol?
    Last edited by stickle; 24-08-2012 at 14:29.

  9. #8
    BFI Member
    TheEnd's Avatar
    Join Date
    Apr 2012
    Location
    Birmingham
    Posts
    139
    Car Specs:
    Year
    1998
    Model
    E39
    Engine
    540I
    Fuel
    Petrol
    Thanks
    19
    Thanked 121 Times in 70 Posts


    OBD2 plugs are pretty standard, -

    http://www.obd2allinone.com/uploads/pinout.jpgAttachment 2974

    Either 4 or 5 for ground should work as they are usually bridged anyway.
    Power on 16, K line on 7

  10. The Following User Says Thank You to TheEnd For This Useful Post:

    stickle (24-08-2012)

  11. #9
    ECU Frier
    BFI Stalwart
    stickle's Avatar
    Join Date
    Apr 2012
    Location
    Northants, UK
    Posts
    631
    Car Specs:
    Year
    1997
    Model
    E36
    Engine
    328
    Fuel
    Petrol
    Thanks
    90
    Thanked 352 Times in 224 Posts


    cheers @TheEnd will give it ago

  12. #10
    ECU Frier
    BFI Stalwart
    stickle's Avatar
    Join Date
    Apr 2012
    Location
    Northants, UK
    Posts
    631
    Car Specs:
    Year
    1997
    Model
    E36
    Engine
    328
    Fuel
    Petrol
    Thanks
    90
    Thanked 352 Times in 224 Posts


    i have a spare wire from my connector, pin 15 (L line) do i need this connecting?
    pin 87?

Page 1 of 2 12 LastLast

User Tag List

Tags for this Thread

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •