Hey guys so recently i threw a rod in my revup vq motor and i bought a vq35de that came out of an automatic 350z. My mechanics have been having a bunch of problems with it and we've tried like 4 different wiring harnesses. Do you guys know if this swap is even possible and if so do you know which wiring harness i would need? The motor already fits in my car no problem it's just the fact that I don't know which wiring harness I need or if its even a ecu problem. Please let me know what I should do. For reference I have a 2005 infiniti g35 coupe with the CD009 6 speed manual transmission and the revup motor and i got a vq35de out of an automatic 350z.

 

Well, to start with, the revup has exhaust cam timing alongside regular intake cam timing, while the non-revup has only intake. NO automatic FM platform cars came with the rev up motor, so you're trying to make a revup ECU/harness work with a non-revup motor.

Theoretically you could eliminate the exhaust cam timing, but I have no clue if that's possible without major wiring shenanigans. Best bet is to swap in a non-revup ECU/harness/gauge cluster, although you're going to have the associated loss of HP/gain of torque/lower redline.

 

These cars simply don't do well with "hybrid" swaps. You would be better off all the way around to find another revup engine and sell the de to someone else. OR bite the bullet big time and do a LS swap that's already been worked through multiple times.