The turbo on it is scrap so to make it driveable it has to be changed, it feels good for 10K so not convinced it's a oil pressure problem, I have a new EGR valve and have ordered a new MAP so they may as well be done . With 3 turbos on it, the fault has been the same, I can't believe all 3 have had the same fault, just this one only lasted a mile before the vnt seized, have disconnected the actuator and can only just move the arm up and down with a screwdriver, so the vacuum has little chance. As you know I've been unwell and a change in meds has put me back about 2 years so have to pay for most the work on it right now. I may feel differently when it is driveable again but have been told it needs new injector seals as well I have new seals but labour ain't cheap. Will see how things are when it's able to be driven again but mapping may be the solution.