Silly to ask but what the heck. I replaced the TPS Sensor awhile ago and lost one of the 2 small washers that retains one the small bolts to the TPS onto the TB.

Could this offset the TPS output signals? (Silly, I know).

 

uh.....no.....The washer is on the bolt and it goes through the out side of the bracket to the TB not in-between the bracket and the TB.
Did you put the screw back in on the bottom?