Hi All I've been told to check the scavanger pump under the backseat of my
1999 406 hdi to make sure that it's pumping fuel to the injectors
Can anyone tell me which of the four wires! are the correct 2 wires for the 12 volt supply to the pump. As I am not getting a correct voltage from any of them I want to check that the pump is working by briefly applying a 12 volt supply to it, to make sure that it's working, If it does work then it could only be 3 things wrong with the car broken wire, faulty relays (the big brown one next to the vcu), or the vcu,
Re Ray:)