Recently i noticed on Direct Scan I can't get a reading of anything between .40 to .48 on my tps adjustment it just skips right over anything in between .I tried another Gm tps I had laying around and the same thing ,I havent done any changes to the car since the fall and never had this problem before .Due to it I have a tip in stumble off idle. Any Ideas
TIA PS even manually pushing down the lever on it wont get it.
