Well, I kind of forgot about this thread until David reminded that it was still going.
These things aren't that complicated. There's no super-secret password or handshake that makes these things work.
If you have a donor car, you have everything you need! Accel pedal assembly, bolt it in, run the wires. As long as the resistance for the circuit is within parameters, you're set. This computer is pretty resilient. If the circuits are good, they're good. It will run, not just good, but normally.
There seems to be a tendency to do over-think this stuff.
I'm not some guru. I'm not a magician.
Running the same gas pedal with the same harness connected to the same ECU will yield the same results. Lengthening the wires (soldering, not butt connectors) will still let everything work. Making the CAN system work isn't anything different. I've repaired the CAN system using the same technique.
Talk to any Nissan Engineer and their face will just about turn white if you tell them that you soldered a CAN wire splice in to make the system function again. I've done the same thing on SRS wiring. Oh yeah, the sacred 'yellow harness'. Don't touch that one, or a kitten will die. BS!
I'm not saying it isn't difficult, I've got experience with custom harnesses, going way back. I'm even building several custom cars similar to the Ariel Atom. But that's another thread.
What I am saying is that if someone has the time, the desire, the basic set of skills to decipher an electrical diagram and has the donor car, then they can swap this engine into anything. You don't have to convert to a throttle cable. You can have the NATS system pulled out, it's been done. You can have the ABS, SRS and TCM inputs all taken out, it's been done. Dakota Digital makes pulse modifiers to trick anything into becoming what ever signal you could need, like a speed sensor.
Really, a donor car makes life so easy, it's not even funny.
Kind of makes things easier if you look at it after a couple of beers.
ETA: I used this manual for the swap, specifically pages 101-102, then all the pages after that, looking at each individual sensor circuit to insure all circuit resistances were within specs for the vehicle that it was going into. Now I have to do the same thing, but backwards, to get the older engine to function normally in the newer vehicle. Not even Nissan has attempted this swap. Hell, they didn't even get the swap we/i] did to function normally.
Modified by Cyclemut at 7:23 PM 12/8/2009