hi, new to this, My a6 started and imeadiately stopped and fefuses to start, all is normal but refuses to fire. Had a mechanic look at it and on test gave the codes 01318 and 01268. He said the fuel pump in tank had failed and I replaced this, but cannot get power to it so I direcly powered it off battery and it now makes a noise. There is no diesel at the filter by the engine and the pump doesn`t seem to have any pressure. I sucked diesel to the filter and filled the pipe to the injector pump but no sign of it starting. I can`t get hold of any auto electrician for love or money which I am hoping to save by not having to replace the injector pump. My questions are, how much pressure to expect from the pump in the tank, is there a way I can by-pass the electrics and test the VP44 pump and or the ECU.