I have been reading and reading for about 4 months now on this swap. I finally got the money to buy a 3.4. I am picking up a 3.4 from a 99 4runner automatic. I plan to swap it into a 94 3.0 pickup 5 speed. I will have the auto ecu and auto wire harness and all the sensors needed from the same 4runner.
my questions are towards the wiring.
1. I have read multiple times that the plugs and pin locations in the harness are the same for manual vs automatic 4runners after 98? am I right? if that's true I should be able to just plug in the engine harness and just possibly re-pin the body harness inside the cab.
2. The ecu will run the engine with the stock unchanged engine harness but just throw codes for the transmission stuff (the speed signals and such) right? The only other problem would be the neutral safety switch that would prevent it from starting but it should just need a ground to bypass it right? I don't have emissions to worry about.
3. If I need the manual ecu and engine harness, do I have to find one from a 99 manual 4runner or would one from a 99 Tacoma manual work? (I read something about the tacomas having egr and the 4runner not?)
Thanks Travis