In this video we see how i totally messed up my Range Rover Sport fuel system and managed to fix it with the help of the IID tool and the guys at GAP Diagnostics. We look at the location of the fuel pump and the way the tank is set up etc. We look at how the fuel pump ECU will disable the pump and how you can used the IID tool to re-enable the pump and purge the air out of the fuel lines.