I have a 2.5L engine in my 1987 Comanche. I am trying to adjust the TPS to factory specs according to the TSM. It says that the voltage reading between terminals B and C should be 5v at WOT. That's what I get but it also reads 5v with the throttle closed. It doesn't vary from closed to open. The TSM doesn't give a voltage spec at closed. Does this seem right? When I check between terminals A and B it changes from less than 1v to 4.7v which looks to be correct according to the manual.