make sure you install the tps properly, it is spring loaded, you will have to install it with it turned a little clockwise fromt he bolt holes, then turn counterclockwise till you feel the spring force from the tps arm touching the TB shaft pin.

any mechanical motion sensors that are sprung like this need to be properly installed in the slack spot then rotated till the holes line up and the arm contacts.

because of tons of screwups like this is why the new generation of sensors are form fit for D shaped shafts and are full floating sensors....