I'm having a similar problem, I have No Vacuum at the Turbo inlet.... I can only assume that the Turbo isn't sucking enough air to create a vacuum there.?

Question, I have cleaned the PVC system in my son's 2000 S40. I cleaned the oil separator, the block inlets, upper and lower, the hose to the top of the crankcase and the hose to the PTC nipple and the PTC nipple itself. I can blow air into the crankcase from the PTC nipple side and I can blow air i...