'91 wont start

[mobowhntr]

I started it last week and it started and ran perfect. The next day it wouldnt start. The fuel pump primes when the key is turned on but the engine just cranks and doesnt start. What are some things I can check before I start replacing parts?

 

[MrShorty]

In no particular order, some things I would probably do:

1) Pull codes: some no starts leave clues in the computer's memory.
2) Check for spark.
3) Even though the pump comes on, check fuel pressure.
4) Check injectors to see (hear) if they are firing.