So I got this RB20det with the factory harness and ecu. I'm worried about the immobilizer because I don't have the original key from the donor car (or even the ignition barrel for that matter). Now I want to bypass the immobiliser so that I can start the engine, but I have no freakin' idea how to do that.

Does anyone here have a clue on what to do? 'Cause I'm stumped.

I'd rather not have to get an aftermarket ECU just to start the engine.