You sound better off than me!
Remember I said I had a VF 28 blow a couple of weeks ago & the intercooler was absolutely filed with black oil?
Well last night same thing, no power AM Dump Valve not working!!
Limping into the Garage today, I think I've got an oli feed problem hope FF sakes it's not another Turbo, just can't afford it.
Good luck with your search for the answer.
Regards
Alan MaC