ORS Harness for 3.0 to 3.4 swap or wiring help

[ttubb]

I am doing an engine swap from a 96 4Runner 3.4 5 speed to a 91 4Runner 3.0 5 speed. I need any ORS kits or parts than may be available. Failing that, does anyone have a listing of the wire splices needed to make this work? Thanks, Terry

 

[Tools R Us]

As your probably aware, ORS is gone. There are a few threads in this forum that list the needed connections to mate the stock harness. Search harness splice or harness connections?
3.4 Swaps - YotaTech Forums

I haven't done this swap, but have researched it and talked to several who have. My understanding is the motor harness plugs into the ECU, plug and play. The dash plugs are different between the ECUs, so power, outputs to gauges, etc need to be correctly connected to the proper dash side plug for the new ECU. There are differences in year, auto, manual, etc on both the 3.slo and 3.4 sides, so I would have factory wire diagrams for both your rig and the one the motor came from to confirm that everything is correct for your rig/ECU.

This thread has good info:
3.0 to 3.4 swap WIRING!! - YotaTech Forums

Elvota is a local (PHX), his swap runs well, may want to contact him? His connection list:
YotaTech Forums - View Single Post - Elvota's 3.4 swap

 

[ttubb]

This is very helpful, thank you, Kevin. BTW, the guys from Rising Sun say hello. /tt