Insted of using an adaptor plate, how easy is it to swap a 90's- Up legacy Auto trans FWD into a 93 loyale. i got the ej22 all ready and ECU-wiring. but cant decied to use what trans.

you can leave it unplugged (no computer at all) and it'll default to running in 3rd gear. i've driven cars for a long time like that. they're gutless from a start but otherwise drive fine.

 

***4WD's are a little different and need some work arounds but you don't have to worry about that.

 

all that to say - it'll definitely be drivable, so you'll have a driver while you try to figure out the computer if you just want to drop it in.

 

if you're doing the wiring for the ECU then it's probably not that hard for you to do the wiring for the TCU right? i'd just get an FSM pinout for the trans and wire up what you need. you'll have all the proper EJ inputs fromt he engine,TPS so that's nice.

 

loyale's are all 3AT trans right so you don't have the option of using the existing early gen 4EAT like some EA82 vehicles have i don't think?

 

4WD TCU's run FWD trans just fine (been there, done that) so that expands your options for TCU's if you need it.

Not all loyales are 3at... I got a 1990 Turbo Loyale with a 4eat sitting in it right now!

 

So yes, the 4eat will fit, no problems. The trans wiring for the computer is almost all self contained. The only thing you need from the ecu is the tach wire I believe, but you really don't even need the ecu for that, just the neg side of the coil. So you should be able to get it all wired in no problem. It will take some work, but doable.

 

Truthfully, buy the adapter plate and put a D/R 5spd in it. I love the 4eat, but if its not in the car already, just swap in the best transmission made for that car, the D/R 5spd. The hastle of swapping over the wiring and all that jazz just really isn't worth it IMHO. And this is coming from someone who add paddles shifters to his 1990 4eat.

 

But if you really want to do it, search for my paddle shifter build thread on here, it has all the links to the fsm pages you will need, and alots of info on how the TCU and the trans talk to each other.