Subaru 4EAT AWD support (Jatco RE4R01A RL4R01A RE4R03A type)

[Subaru_EA82_4EAT_AWD]

Hi, I suggested on facebook it may be a good idea to look into Jatco 4EAT transmission support for megashift, they are found in a lot of cars, Nissan, Mazda, Subaru across a lot of models and years. Particularly in my case I would love to see support for the Subaru 4EAT AWD version, possibly known as "R4AX-EL"

I was asked to put up some information about the workings of the transmission here, so I have linked a small section of the FSM (1988 Subaru XT) that covers the electronic control, I can put up any further info if required or wanted, the whole FSM if needed...

http://d01.megashares.com/dl/LspTokB/pd ... %20doc.pdf (too big to attach)

Thanks for looking at it.

I'm sorry if the transmission model codes aren't exactly correct, I got them from here : http://www.transgo.com/products.php?prd ... ntview=Yes
It would be a whole lot easier if the model number was on the case somewhere...

[jsmcortina]

That PDF is enough info for generally controlling the transmission, but more information is needed on the control strategies for sol3 for 3-2 shifting and overrun.

James

[Subaru_EA82_4EAT_AWD]

Thankyou very much for looking at it.
I cant seem to find anything else as far as electronic control logic in the FSM, but I could upload the whole thing if you want to have a look through it?

Do you think Megashift will have enough inputs/outputs to control the shifts and the duty C (4wd transfer clutch)?

I did find this (attached wiring diagram) that may be helpful:

[Subaru_EA82_4EAT_AWD]

I would also like to apologise if I have said 'Megashift' where I shouldn't have here too, I have just realised that there may be two different systems, Megashift and 'Transmission control' I don't quite know the difference, but I am keen to learn, if my inquiry about my Subaru transmission is more apt to a different place on the forum, please let me know and I'll move it!

[hardline]

So it looks like all the stuff provided so far is a phase one transmission. I have some data on the phase 2 transmission also, if anyone cares to make any progress on this.

[Vqrob]

Any more info on Jatco control ?

[Subaru_EA82_4EAT_AWD]

no one played with AWD yet?

[Bigcam]

Interested in getting this working on a RE401A.

[Bigcam]

There is always this company https://www.shiftkits.com.au/