ill enlighten u with my dilemma. say ya cruising down the street under constant acceleration maintaining 5 psi boost the u slightly easy of the throttle so that the car runs into vacuum - then the cars stutters and stubles just slightly but ebought to piss me off.. its also got a slight "hunt" at idle once the cars warmed up wich ive gotten used to just doesnt sound right and occasionally the car will stall (more often when its warm alos. ive removed and blocked the bov incase it was leaking or because it vents to atmoshpere - makes no diff. i got lexus afm 550cc pod ehaust intercoller safc tuned by the faggots at hyperdrive.. ive also tried another tps which made no diff either. any clues as to what my prob may be... cheers