so i have a suspicion this might be the problem:
http://www.youtube.com/watch?v=eYUDpAOmDT4&feature=youtu.beIt's the only logical thing i can think of at this point. A person in another forum was saying his car had erratic boost but ran exactly 5psi with n75 disconnected. I do get some burning oil smell sometimes which i assume is the turbo seals going, so i guess it's time to replace or upgrade .... damn! Do you think this problem could be repairs? I guess i could use some copper washers or something idk...
What are your fuel trims looking like?
Sea Foam the engine via vacuum hose or straight into the intake. The smoke out the exhuast will show any leaks in the system including through the WG arm bushing. or you could unbolt the actuator shaft and cop a feel to see if the arm slides in and out.
a tell tale sign of the oil seals failing is oil consumption, oil in the charge air piping/intercooler and white or gray smoke out the exhaust.
if your problem mirrors whats in the vid, just replace the turbo.
