DIY ECU tuning for Motronic 1.8 (960)

Thought id post up in a separate thread my M1.8 adventures, My 240 has some 1995 960 goodies in it, mainly the engine, trans and EMS - See: https://ozvolvo.org/discussion/2389/julians-240-t5/p1

If the parts were from an M4.4 car (S90/V90 OR V/C/XC70) Then tuning would be as easy as loading up a pre made XDF, ADX, Bin and having a poke around in Tuner Pro.

Unfortunately Motronic 1.8 has been largely ignored, mostly because the cars it came in are generally not modified, and when they are, are usually gutted out for a standalone setup like a MAXX, Nira, VEMS or whatever is most popular at the time in Sweden.

So, along with some help from the helpful folks over on TB, Broke4speed has done a lot of work when it comes to tracing tables and maps. He has since moved on from the project, but has offered to aid me in mapping out the rest of the bin to a point where its usable.

Link to tb: https://forums.turbobricks.com/showthread.php?t=337500

I have a few resources that Ill be collating over time, wiring pin outs, diagrams etc that I used to aid in my swap that may help others in the future.

This 55-pin ECU Connector wiring diagram helped me out a heap, the volvo greenbooks are good, but some things arent so clearly labelled
Ive tried to link it, but the domain is dead - I was smart enough to take a screenshot B)
WI9HsbNh.jpg

More to come, Im hoping to have have a T6 bottom end to play with in the near future, which will require a little tweaking on the ECU side of things ;)
bgpzfm142jamesinc

Comments

  • I just shoved a ms1v3 board inside of the 1.8 case and called it a day....

    Interested to see how you go with this
    I think you need to add i was in an s80 with three wheels getting pulled backwards and was told to "hold on shit is about to get real".
  • GhettobirdJulian (@Ghettobird) Melbourne - SE Suburbs
    Im poking for info from some of the popular swedish chip vendors, the age of the ecu makes it a fair bit simpler than m4.X, as it would seem - most places only modify the fuel and ignition maps, which have already been clearly defined in the bin by others before me.

    Id like to see if injector constants can be traced in the stock bin, they may not even need to be! then it should be as simple as modifying the fuel map and ign map to suit boost!
  • GhettobirdJulian (@Ghettobird) Melbourne - SE Suburbs
    edited October 28
    Distracted myself from things Im supposed to be doing today, finally got the M1.8 running on an Ostrich.

    Case off, easy stuff
    DfZneATh.jpg

    Right there in between the two boards, you do NOT need to seperate the boards to get the chip out, a screwdriver and a small pair of pliers is more than enough to pull the chip retaining cover off
    KDYTa2hh.jpg

    Save for incase, dont chuck this as its the only thing thats gonna save you if you cant get the Ostrich running (apart from another ecu)
    dRznHAzh.jpg

    28P connector, nothing crazy, This is the stock cable that actually came with the Ostrich
    tIoUDVCh.jpg

    Purrrfect
    9AUz8Koh.jpg

    This was a little tricky, getting the cable in without bending pins OR ripping any components off. Possible, but tricky
    ZhNTiu5h.jpg

    Make sure you are set to 28/32, then 28 on the right side. Forget and your ignition relays will do funny things :s
    9yKFgPyh.jpg

    I decided to cut a nice little slot in the side, and sand every fekkin edge on this finger slicing tuna can of an ECU cover
    t9iLBg9h.jpg


    It runs like stock :)


    Now to work out how to data trace and clean up the XDF a bit

    Im very happy that Its all worked out so well, with any luck I should be able to identify the important tables in the BIN and send the car off to Trent for a good working over when its ready for some BOOOST :)
    egadsbgpzfm142
  • Very interesting Julian!
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