So I was wondering if I was to do a 1jz or 2jzgte swap, could I just have the normal wiring harness plug into a stand alone ecu and program that ecu to start up the car via a push button start?
Or would I still need the immobilizer?
Yes, A stand alone is stand alone. It would bypass every thing OEM. You will still need to do a lot wiring changes to the harness to do this. So nothing is a plug in fix all. If you do not know what you are doing. I would read a ton on the forum. Before doing or asking more questions.