i have no clue. i removed the tip sensor and it ran better, then switched the map and tip it ran the same. removed the map from the tip location and it still ran bad. put the map back on the intake hooked tip and the car ran bad, removed the tip left the map in and the car ran better but not perfect. of course this did throw codes. i cleared the codes and then took the car for a drive and it came back with the following codes: P0888-tcm power relay sense circuit, P1190-manufacture control fuel air meteringI have no idea. Wouldn’t your elevation play a factor in that.