ECU problem?
 

Hey guys an girls! Quick question, I swapped out my motor the other day due to a small hole that was created by my piston. I got a motor off an M35. The engine is in and everything was put back together, issue I'm having is that I'm not getting any spark to the coils, there's no gas getting to the heads, my throttle body isn't opening either and my scanner won't connect to the ECU. I disconnected the battery before I disconnected the ECU so nothing would had happen. I'm a little lost right now and confused. I am taking an off day to get my bearing so I can go back at it with a clear mind. I will check all the connections again. Would I have to swap the ECU for that motor? Or re flash my ECU? I wanted to get y'alls input. Please give me an insider!! Thank y'all!!

I bet you popped a fuse , and your current ECU is the one you need