1996 Nissan Sentra wont start

Usual suspect is that you need to make sure:
1. Check your fuel pressure at the fuel rail, must be around 45 psi.
2. Check for spark. Use #1 spark plug, must be blue minimum of 1"
And then follow this diagnostic.
HARD START/WILL NOT START
Check battery and starter.
Check fuel pressure.
Check fuel pump circuit.
Check fuel pressure regulator.
Check fuel injector circuit.
Check fuel evaporative emission circuit.
Check Idle Air Control Valve-Auxiliary Air Control (IACV-AAC) valve.
Check ignition timing and ignition circuit.
Check timing chains.
Check Exhaust Gas Recirculation (EGR) valve.
Check Positive Crankcase Ventilation (PCV) system.
Check Camshaft Position (CMP) sensor circuit.
Check Mass Airflow (MAF) sensor circuit.
Check Engine Coolant Temperature (ECT) sensor circuit.
Check main power supply and ground circuits.

Let me know what you find out.