im having the same problems wit my tps. it reads 2.5 at wide open throttle and my check engine light is on because of it. i was wonder how exactly you are suppose to adjust it? am i jus suppose to tighten or loosen the screws or wat? if so, does 2.5 at wot mean i should tighten it more. i wanna make sure before i strip tat screw. thanks.