Engine Conversion Wiring Issues - Starting

[REAPAH]

It's not exactly a skyline but close enough, a lot of you guys are pretty clued up on Nissans and may be able to help me out.

I have a C33 Laurel with an RB25DE+t (out of an R32) in it. I have done the wiring myself and everything is ok except for the starting. On crank I don't have any fuel or spark.

I suspect because this is due to the 'KEY SW Start signal' is not wired.

I have located this wire on the ECU side however I am unsure of where to wire this on the body harness. I thought giving this wire 12v would act the same however no luck. Even if I just remove the steering shroud and wire it to the ignition but I am unsure of where this goes. I'm running a Link ECU and am even suspecting tuning issues?

Any experts have an idea? Sick of having to push start the vehicle.

Any help appreciated