Ok I have the smoke on decel after boosting issues and it's not the turbo b/c i replaced the turbo when this first happened, also rebuilt engine and just put it back. My friend who work at Toyota as a mechanic suggested that it could be my powersteering or break that is leaking oil either into the intake on exh when i hit hte break. I cleaned the ps pump b4 i put it back and right now after driving I look at it, it's wet with oil. Any possible vac hose down there that can get oil into intake/exh?