Im having what seems to be sputtering when im decelerating within my vtec range. No sputtering during acceleration though. Also no sputtering on decel when not within vtec. Tune was on point. Engine was running perfectly, problem started when tps was replaced. Tps calibrated to factory specs. Replaced tps multiple times and volts are consistant to factory specs when accelerating/decelerating. Also replaced map.

B18 pmr tuned on s300.

 

Have you updated the TPS calibration in SManager?