Hi,I have a ford Mustang 2005 GT (AT) and have installed The Ford Performance Dual Fuel Pump Kit. I have installed everything, load up the tune and the car wont start. It doesn't get any fuel. I have tried Contact where i bought it from (Brenspeed) but no answer, tried to Contact Ford Performance no answer on e-mail or the liveChat. so am at my ends here so i hope some here has some experience.

This is what i know the fuel pump is working, i know it gets power to the fuel pump, the relay is working i hear it clicking It has ground but the ground from the both moduel isn't sending ground to the pump that is why it wont pump the fuel so that it can start the car. There is also a blue and a yellow wire that i don't know where to connect because it doesn't say in the instructions. (https://performanceparts.ford.com/do...-9407-GT05.PDF) so i hope somebody know this and can help me. Thank you for your time.



Stock moduel connected with the new harness and one red wire to the stock connector

red wire has power, the second ground has ground but ground far end of the connector doesn't have ground is the same wire that is inside the grey thick one.

same with the stock moduel. red wire has power, the second ground has ground but ground far end of the connector doesn't have ground is the same wire that is inside the grey thick one.

Here you see the grey wire with 1 red and 1 black that comes from the moduel, the red is hot but the ground from moduel doesn't have ground.

 

You need to have 2 Fuel Pump Driver Modules, when upgrading to 2 Fuel Pumps. It worked fine the other way due to the fact you had 1 Fuel Pump and 1 Fuel Pump Driver Module for that 1 Pump.