Rough start and idle, won't engage transmission, and no oil pressure
I cannot get my car to start without turning it over 8-10 times. Then it runs SUPER poor. I have to get on the gas to keep it running. The throttle is slow to react. 6-bolt swap i picked up in the middle of the project. Fuel pressure is normal. It could be bad gas. I put some octane boost in and 3 gallons of supreme. But I don't know if it would run this poorly for this long. Help! Did see that the ECT wasn't wired correctly. Rewired, and cleared code. Will update this when I get more gas. Think it might be low.
Second problem is it doesn't seem to get into gear. It's an automatic. I can get it to engage sort of if I rev it in neutral and then put it in gear. From a stop (as I have to rev the engine), I can floor it and get no throttle reaction in gear and it doesn't go anywhere. Someone mentioned I could have some plugs switched to the transmission, they aren't switched.
Third major problem (and probably worst) is I am not registering any oil pressure. The pump is wired correctly.
Any help would be appreciated. I just got a note from the city that I have to have this car registered, and there's no way in this condition.