legacycentral bbs

So for a few weeks now I have been having this warm starting problem with my 93 N/A wagon, when I start it in the morning it starts right up, same if it is hot and I try starting it within a few minutes of turning it off. However, when it is hot, sits for 25-30+ minutes, it cranks for about 4-5 seconds before firing up. I have done hours of research and replaced:
the coil pack
plugs and plug wires
coolant temp sensor
PCV valve
Battery
fuel filter
fuel pressure regulator
cam position sensor
crank position sensor
... And I still have the exact same problem. I can hear the fuel pump prime when I turn it to ON and once it starts it runs smooth, never misfired or stalled on me, if anyone has any suggestions they would be much appreciated!

Add to that list the injectors and rails, and I cleaned the IACV with throttle body cleaner, still starting hard when it's warm I am 100% stumped

Have you put a fuel pressure gauge on the fuel line to see what it's doing while starting?

Do you have a spare MAF you can try? I don't know if I'd recommend buying a new one at this point, but could be worth swapping as a troubleshooting exercise.

Hey, I actually (knock on wood) just resolved the issue, replaced the fuel pump and strainer and so far has been starting as it should at all temps, thanks though!

Good to hear the problem is fixed.