EVAP/Fuel Tank Pressure Sensor?

No, the Fuel Tank Pressure Sensor is used for the EVAP system and will not affect the fuel pressure, please recheck the electrical connectors and fuses if all is okay it sounds like the fuel pump is no good.

Here is a guide to help make sure and a video of how to change the fuel pump out, I would get an ACDelco unit:

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Measure with the Key on Engine Off with the fuel pump commanded on.

Vin (V,T,U)
Fuel Pressure (gasoline) .................... 55-62 psi

Vin (Z)
Fuel Pressure (ethanol) .................... 48-54 psi

This is on a similar truck:

https://youtu.be/VuGxQgWDP-0?si=SaRuXMdmJoqzjQ90

Here is how the job is done on your truck in the images below. Check out the images (below). Please let us know what happens.