[Horneck]

Just a brief update about the progress finding the problem of the car.
Just have purchased a remanufactured Warm Up Regulator and the pressure fluctuations of my fuel system at idle is gone. The system and control pressure of the system is now within the expected levels.
Unfortunately the problem with my car actually has gotten worse.
After a brief 1 mile warm up (car behaves as expected with no problem to rev up) the car now starts to misfire starting at 1800 rpm. When the car is warmed up the CO at idle is 9% and the car is blowing black (maybe blue) smoke. For sure it runs way too rich. Start up and idle is perfect. As soon as the car gets into boost the problem occurs.
I am at a loss running out of ideas what to check next. Cannot find any boost leak and I am starting to think that maybe my turbo is blowing oil into the cylinders?
Please let me know what you would check next as the car is not drive-able.