I chose to go with a Haltech Platinum Sport 2000 engine management since it would control the variable valve timing this motor has for the intake cam. The wiring was a couple of days worth of labeling and measuring for wire lengths. I used a harness out of a Supra that was meant for the ECU as a starting point and modified it to fit this chassis as the ECU is in the cab. I chose to run the 850cc injectors from an LS engine platform as they are readily available and coils from the LS engine too