fastdiesel
New member
- Joined
- Aug 1, 2012
- Messages
- 9
2005 cummins need help with the plug that goes connected to the fuel tank the one with four wire's a red/black, blue,blue/white,and orange/red stripe.i connected the blue/white to the s one the fuel cell sending unit and grounded the fuel cell gauge works but don't know how to turn the relay for the fass pump on use to work fine when the plug was hooked up to the tank but since it's unplug it won't work.please somebody help me before i burn this truck down to the ground.