Gentlemen I am new to this forum so please have a little patience with me. I am in the process of doing an engine swap. The donor is an 04 Accord V6 automatic. The recipient is a soon to be built Airboat. The engine will be installed pretty much as it came out of the car less transmission. I have all of the wiring diagrams and will use original ECM. My question : is all the sensor wiring from the transmission back to the ECM necessary for proper engine operation or can it be eliminated. I can duplicate the pressure and temperature sensor signals ,but what about the mainshaft and output shaft sensors on the transmission.

 

You could try finding a manual ECU.

 

If I am not mistaken I think the manual transmission has mainshaft and output shaft sensors also

 

That may be true, but that's like still like 10 less things it's going to be throwing codes for.

 

Yep. Good point.