The fuse box isn't grounded. I'm not sure exactly what has happened.
As far as the grounds, I attached the ground distribution for the entire vehicle below. I highlighted everything related to the fuel pump. Let me know if this helps.
Here is a link you may find helpful:
Also, let me know if you have other questions or if there is something I can do to help.
See pics below.
Images (Click to enlarge)
Thursday, July 29th, 2021 AT 10:09 PM