Fuel pump won’t prime worked before motor was pulled

I got an 04 gt I pulled the motor to fix my header gasket and when I put it back in and hooked everything back up the fuel pump wouldn’t kick on and the fuel pump is a newer pump it worked when I pulled the car in. I check fuses which they where good I have zero voltage at the ifs switch with the key on and one pin on the pump harness has power but the other doesn’t.

alwayshi said:

Grounds?

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Ground was good I checked my fuse box and found the pin that goes into the bottom of the fuse box wasn’t in its slot so I took it out and fixed the pin and now it works like it did