I bought a 1994 Base 4x4 Pickup without an engine in it. It was on the ground beside the truck. I rebuilt the engine and have ran into electrical problems since i did not take the engine out and this is my first toyota project. My current issue is: Fuel. I replaced the ignitier and have spark and power to my injectors. My fuel pump used to work with the key, until i hooked up a three wired ground (3 pink/red wires on brass connector attached to plenum) and single ground (Firewall to intake) now i have no power. If i unhook the 3-wired ground then my Fuel pump will engage but i must touch the 3-wired ground to stop it. I need ideas on how to track down this ground issue or whatever it may be.

 

figure out your wiring problems I am kind of having the same issue. Just wanted to know what you did.