I went by the manual for idle setting .49 volts. I understood the manual to say the range was .48 at idle at idle to 5.25 volts wide open throttle. I get right at 4.00 volts at WOT. The throttle blades are straight. Now I can take the throttle arm by hand over make the blades go past straight and the TPS will read 4.20 volts. I guess my question is at what voltage does the ECM consider it WOT? Is my voltage low? Is there any benefit to having closer to 5 volts or does not matter at a certain voltage?