Can anyone help me.
Ive got a cally turbo running standard software, i fitted a boost gauge and air fuel ratio gauge at the weekend and found it is under boosting. air/fuel is fine. it overboosts to 0.5-0.6 bar and only sits constant at 0.4 bar. i've adjusted the actuator loads of times to try bring it up abit, but it makes no diference. There is no boost leaks visable from main pipes or vacum pipes.
What do i check now?