Hey Dale S,Thankyou for relying to my questions.
I followed you're advise on diag. but I didn't find a useable vacum source. I did ck. all connections and transducer. I re-connected the line to the wastegate and road tested.
The 2.5 runs pretty strong for it's size. I believe the turbo must be working.
Where I work we have the sprinters w/ the 2.7 turbo. I'm using it for drivability reference. They run strong and fast.
As for the tap it has started to go away sooner at warmup. I'm crediting the sythetic for that one so far.
Thanks again for the help. Much appriciated! Go diesel!
Robert