The external fuel pump that you need to buy to replace the existing pump that was in the in-tank module will come with its own wiring harness. The new wiring harness connects to a lead at the ECM and a power and ground connection. Route the new harness to the new pump and plug it in. This is the install procedure for the Raptor pump I have.. 2 places you can / should do that , at the asd relay on the driver fenderwell Z1 14 gauge dark blue with a black tracer and/or at the fuel pump 14 gauge dark green with a black tracer 16 gray is ground for gauge , AND the pump , 18 gauge dark blue with a yellow tracer at pump is gauge . check with a volt/ohm meter . the asd connectors dark blue with black stripe wire fed the fuel pump relay.
tried my best to English writing I tried to figure out the issue, but the wire got loose, causing the fuel pump to stop working. did crank but no start. on 2016 Ram 6.4hemi. I replaced the new TIPM, which was not solved. I think found a blue wire under the green connector for the fuel pump or.. Dodge Ram Fuel Pump Wiring Diagram. When it comes to troubleshooting or repairing the fuel pump in a Dodge Ram, having a wiring diagram can be extremely helpful. A wiring diagram is a visual representation of the electrical circuit for the fuel pump, showing how the various components are connected and the path that the electrical current takes.