Years ago I bought an 80 that a local dealership couldn’t get running. Recently I’ve been working with a member with a similar problem that you are describing.
I finally linked the two together and solved his problem.
The power for the fuel pump is supplied through various connections one that is particularly hidden and not obvious.
The power comes down the DS door sill and then branches off to go under the drivers seat and through the floor to the underside of the cabin. It’s here where Toyota decided a connector was needed. In both cases that connector was corroded and the problem.
Good luck
I finally linked the two together and solved his problem.
The power for the fuel pump is supplied through various connections one that is particularly hidden and not obvious.
The power comes down the DS door sill and then branches off to go under the drivers seat and through the floor to the underside of the cabin. It’s here where Toyota decided a connector was needed. In both cases that connector was corroded and the problem.
Good luck