Bmw n47 p4620 problem high pressure pump. Restless engine operation at idle

bmw n 47 ,nemirno radi na leru kod greške p4620 ,visokotlačna pumpa neispravna puna špene

[@eoghanhennessy443]

Hello i have bmw n47 engine . High pressure fuel pump broke up on it metal in system destroyed everything so . We cleaned system . New high pressure pump . New injectors. New low pressure pump in tank . New fuel rail with regulators and sensor plus new fuel filter .. the fuel pressure at idle on the car is unsteady going from 270 to 300 bar erratic. Keeps registering fault code with predelivery fuel system i have even replaced fuel pump control module. Would u have any ideas please

[@hawk_travel]

Must it clean the Sistem from fuel tank till engine?

[@mercedesgarage2919]

Yes,fuel tank ,in tank fuel pump,fuel lines...

[@darkonojic7494]

I know what is problem. It is N47.