ok I have a 1999 R34 GTT. RB25det Neo motor. I have decided to do a GTR engine swap on it. the long term goal is AWD also but for this summer im going RB26dett Rwd. need to collect some more things to do the AWD conversion and summer is almost here.
What i have:
RB26dett and AWD trans from R32 GT-R (has harness and ECU)
in R34 is RB25det Neo with rwd manual trans (obviously has harness and ECU)
I also have a RB25det with rwd trans from R33 thats in my 240 but i am willing to rob parts off it for now to finish R34 project for summer (has harness and ECU)
RB26dett from R32 GT-R, +Rwd trans from R33 Gtst.
big problem I am running into with this swap is the wiring and ECU. the R34 neo has alot of what i call "body control" stuff in the harness and ECU that i will loose when swapping engines.
i got the engine all ready to pull and when i pulled the harness from the ECU through the firewall that was when i realized i was about to loose a lot of features in my car (lights, AC, ABS and a whole lot more electrical). so now im freaking out. im worried the engine may work but ill have not functions in my car at best.
the first step was to attempt to separate the engine harness from the "body harness" this cant be done without cutting wires so i was very careful to log where each ware came from and where it was going while cutting. also got the Pinout diagram that tells colors or wires and functions.
I need help with this guys any and all input is great! i i have seen other members of this forum do RB26 swaps in GTTs but never saw what they did about wiring.