thats really as specific as i can be, there was smoke coming out of my o2 sensor. i have no clue why and im not throwing a code. basically my car feels like a b16 cause i have no torque when i should have alot. under boost it feels like im leaking air or not gettin enough fuel. and sometimes at full throttle, under the boost the car will start to pull then start misfiring/backfiring! let me know if that helps at all?