Ive been trying to calibrate my tps sensor but im stuck at -4.93, i have my meter set at 20 Vdc but no matter now much i move it around or tighten it, it stay stuck at that reading ive tried with key on engine off and with engine on and everything but nothing seems to change it, pls help

 

Are you certain you are not measuring the 5v reference line?

 

yes im certain, im set to 20 volts on the Vdc section

 

Yeah but there are three wires going to the TPS. Ground, 5 volt reference, and signal.