Yes correct, Engine is a bjc. We have tried a new vacuum pump and also replaced the vacuum solenoid. The vacuum hoses are good and holding pressure. You can see the turbo actuator working. Still no difference. All engine data seems to be good. When lifting the hydraulics also seem a little slow to start lifting. It seems to me like an engine power issue. We have even swapped over an injection pump, and also swap over a complete engine. The transmission has been tested at Linde Hydraulics, and also the hydraulic pumps swapped over with another truck. The fault is still there. It is really strange