Ok so this is a little vague, but it might help others who are considering fabricating an ECU harness. I will elaborate on this more once I get everything back together.
Essentially I created a new harness from scratch using new Toyota and Deutsch connectors wrapped in Techflex braided wire cover. I also used MIL spec shielded wire for the crank, cam, and knock sensors. The harness has a breakout near the ECU that allows you to switch between ecus without unplugging anything else. I also added breakouts for an Apexi AVCr and a Zeitronix wideband controller.
The pics below are from the planning of the harness, I will post some pictures of the actual harness when I pull it out of the car again. I ran the harness for about 1500 miles with good results so far.
Some notes:
Toyota Color: Wire color/pin from stock Aristo Ecu harness
Engine Color: Wire color in my fabricated harness
Haltech Color: Sport 2000 flying lead harness wire color
NOTE: Ignore the pin numbers in the second picture. The tables shown in the bottom image is how I actually laid the harness out.
