I find the problem. It was injector. I checked self how diesel coming back from injectors. It easy to do self before going to garage and spending lot of money. I was in lot of garage, changing 3 fuel pump, common rail and ... and i had same problem and nobody knows what is wrong. So i fixed self:) How to check: need 4 rubber pipes (about 30cm one), 4 small glass, take out intercooler, take out small rubber pipes from injectors and put on long pipes. One end on injector and another end to the gla