If we are not getting power to the fuel pump, let's narrow things down. First, the PCM B fuse in the under-hood fuse box is the power supply for the pump. I realize you checked fuses, but did you confirm there is power to and from it? If not, do that.
Here is a link you may find helpful:
Next, how was the relay tested? There are two power supplies that need to be present at the relay. Have you checked for power? Also, if you remove the relay and locate pins 30 and 87 on the relay plastic housing, and then place a jumper wire between the two connectors where those pins connect in the relay box, does the fuel pump turn on?
Here is a link that explains how to test a relay and how it works:
Let me know.
See pic below.
Monday, December 5th, 2022 AT 6:56 PM