Volvo d12 2007 fuel pressure problem

Hi guys d12 eng getting code for check


fuel filter mechanic change ACC drive fuel pump fuel filter mount with the primary pump still same problem tryed supplying fuel directly through fuel filter housing still Same problem don't know what to do any help would be appreciated thanks. Sam

 

1.1 million miles no injectors or cups have been done going look in to it tks

 

Installing the cups now let you know asap tks

 

OK nasriza brother change cups check return fuel line still same low fuel pressure now mechanic is talking about defective fuel pump tomm he will bring onther fuel pump let's see what happens tks

 

Yes he supplied air pressure from the right side fuel tank fuel comes to the water separator filter he allso supplied fuel from the bucket directly to fuel filter on the driver's side same result