I am changing my thermostats which requires pulling the air inlet tube from the turbo to the blower and found a consideralble amount of oil laying in the tube. even though mine was making boost turns out it has a problem. luckily I had bought a reliabilt unit on ebay for cheap awhile back as a backup. if nothing else have you changed the air filter and pulled the air tube and spun the turbo to make sure it spins free? same with the fuel filters. lack of fuel or air will make them lay down.
Now that's what I call puttin' the hay down where the goats can git it. I'll git on it.
Mine ain't just laying down .....I think it's asleep.