1990 240sx, no start

[czerone]

I just finished putting the usual ka24e engine into my 1990 coupe and it wont start. I have no spark, I have power running to my EGI relays(not sure which exact terminals are supposed to get power or not) Ive been trying things for the past few days and only twice did I actually get fuel pressure, but im not getting it anymore. Could it be a lose ground? or how can I check to see if my ECU is even getting power? I dont have a good FSM to check these things. Any help would be great!

PS: The car does turn over.

Ive browsed a few sites, tried what others have tried, and ive gotten nowhere.