i am working on converting an ej22 to run on an alternative fuel and i will need to have the engine running to do this, of course. well, i'm not doing this with the engine in the car - i'm building a stand that will hold the engine, rad, harness, etc.

 

i am wondering how much of the transmission controls or whatever are integrated into the ecu. in other words, how much of the wiring/sensors for the tranny does the ecu need to operate correctly. i'm dealing with an ej22 out of a 92 legacy (not positive on the year, but it's first gen) w/ auto trans and awd.

 

i've got the engine, ecu, most of the harness, and while i'm working on the stand i'm also trying to figure out the wiring and what else of the harness i need. i need the engine to run on my stand just as it would in the car and using gasoline before making any modifications.

 

i guess a lot of you guys will wonder what "alternative fuel" i'm trying to convert this thing to use but to be honest, i'm keeping that under my hat to save myself the ridicule and make sure this thing doesn't rabbit trail away from hopefully getting the answers i need in the meantime.

 

i promise, once i have it working you guys will know that same day - but please hold the sarcasm or prying inquiries until then. if you don't want to take me seriously that's fine, but i'm working on this project with a friend of mine and we've already made some progress. we're hoping for some useable results in the next year or so.

If this is all on a test stand, you dont need anything from the TCU to run.

 

Fuel injection does not work well on gasous based fuels. If its alchol you will do better.

 

 

The tranny interacts with the ECU to momentarilly reduce power during upshifts. The TCU takes alot of information from the ECU, but there is nothing neceassary from the TCU to run the engine.

 

 

Just look at a manual

 

nipper

If you do something "exotic" (like a gasifier) let me know

 

I've been thinking about doing some work in that arena but I just can't seem to find the time to do the development work.