Reset ecu...by turning key to on position,but don't start car...hold gas pedal to the floor for exactly 3 seconds,the return key to off position for exactly 2 minutes exactly...ecu will reset and if tps hasn't been miss adjusted...you car will shift smoother,excelarate faster on the down shift ,and hesitation will be much improved...please...premium gas is a must!!!! Try this simple solution...it worked for me and others who have this outstanding car with that experimental FBW, trust me the1MZFE is a top shelf engine combined with a strong tranny...they should have just lost that FBW until they perfected it...just saying...
