bigcat
+1y
All injector are not wired together on this truck, each one has its own power supply, which comes from the batt and is fused through the ECM1 fuse in the under hood fuse block. They have power any time the key is on. The PCM grounds each on at the proper time, so a pinched ground is not likely, it would have to be 4 pinched ground wires. It is possible, but not likely, so double check to make sure they are not stuck under the intake or something.
Stupid computer, cant copy the wiring diagram for you to post it on here