What would be the cause of this cranking no start?

I’m a heavy duty mechanic. A couple weeks ago I
had a cranking no start on my truck Washed the
throttle out and it worked for 4 days then a cranking
no start checked fuel pressure and had 23PSI
changed fuel pump run for 4 days and once again a
cranking no start still no codes from the first time till
now removed resonator seen that the throttle body
does not respond to the accelerator position. So I
changed the throttle body and 4 days later it is a
cranking no start again. I checked fuel rail pressure
and received 0 checked for power at the fuel pump
and found I had power. Does anyone have any
experience with this? Is there any relays or anything
else that could be an issue that I am overlooking?
For extra information it’s a 5.7 hemi I’ve gone
through everything I can think of, it still has 0PSI on
the fuel rail, and it is still not wanting to start, it will
spit and sputter on a shot of ether.