Originally Posted by ripemeat
hmmm... tough to hear exactly where the noise is. check your turbo for shaft play, if it's toast it will spin and bounce around like marbles in a can. if you have an aftermarket downpipe you need a tune, its a requirement. who knows if you have an open source tune or not(the other option beside accessport). the smoke at idle leads me to believe it may be turbo related. easiest thing to do is remove the downpipe and look at the turbine to see if its all banged up. the longer you let the car idle and/or drive it if the turbo is blown, the more damage it causes to your engine bearings. drain the oil and inspect the oil for metal flakes/shiny dust.
If the turbo is done and its blown or what not would there still be all that oil in those parts? Also the car would not come out of vacuum at all when the problems started happening. Is that relevant or is that just the cpu not allowing boost as a result of the issue.