I had the same problem, the catch can has a breather in the system... should work ok, are you still getting oil smoke? You may of damaged the oil seal on the turbo? Go have a look at your intercooler, you should find oil deposits in there! Clean it out with metho/kero (ie drain it n empty until it runs clean, DONT tip the cooler upside down as the oil will run through it lol) and clean the pipes out then go for a hard drive to burn any oil sitting in the zorst and have another look to see if that helps, personally im still abit stuck with it all but im tryin the cooler cleaning next week.