Been there, many of us have, here are some pointer
If you do not have a Nissan Factory Service Manual, you need to get one. NO IFS, AND, OR BUTS! You are probably anxious about getting the car going and you are not going to like this, but troubleshooting this car in particular is a time consuming process that needs to be done in a methodical way.
I and many others on this site can throw piece-meal things at you, like vacuum leaks and timing. And I'll bet you have vacuum leaks and your timing is off. But the ZXT's engine management system is a SYSTEM. Unlike many other cars, the ZXT is in a class by itself in how reliant it is on everything working in harmony with each other.
You will benefit greatly and REALLY educate yourself by using the Factory Service Manual (NOT HAYNES OR CHILTON) and performing checks on each and every ECCS component. Make sure you have a DIGITAL volt meter and do ALL of the voltage and continuity tests on each component. Some of this will just let you know that 90% of your components are fine, hopefully 100%. But you need to know and be sure of what is correctly working on you car before you start trying to correct your problems. You WILL eventually find your problem/problems. It may seem like voodoo is at work under that hood and in you footwell, but it's plain old electrical/electronics.
If you had the distributor out of the car, you must make sure that when your number 1 piston is at TDC, your ditributor's rotor must be connecting to spark plug wire terminal number 1. The manual points this out and shows you how to do it. Also, make sure your firing order is correct. The car will start if a couple of the spark plug wires are reversed, but it will barely run.
You will need the factory service manual anyway, because Nissan Dealers SUCK when it comes to servicing and troubleshooting these cars. They are uninterested in them to begin with and their mechanics are just as confused as you are about this engine management system.