R32 Gts-t Fuel Pump Control

[RedDrifter]

Ok I am aware that the ecu controls the voltage of the fuel pump to allow the fuel pump to have two different speeds(Low load then High load).

I think this is done by controling the ground of the pump.

All am I need to know is if this is right and which colour wire I need to ground to the chassis to allow the pump to run at full 12 volts all the time.

Thanx guys.

[MerlinTheHapyPig]

yes, that's right.

Not sure which wire though, the fuel pump wiring harness is in the boot, I think it's a 4-wire plug. At a guess i'd say it's the black one, because black is usually ground But i don't know for sure.

There was an article on this, because it is a common problem (ecu cuts power to pump at traffic lights and car sometimes stalls). Try searching tech section or How-to's