TPS readings are normal. Your cars computer (EEC-V) reads 0-5volts returned through the TPS. Once inside the computer it's converted to a number in the form of Analog-To-Digital counts, say 0-4095.
When you use a OBD-II data logger to see the TPS, they usually automatically read the counts and then peform a conversion to give you volts or % of max volts.
The computer monitors the TPS for minimum voltage and uses this for its closed throttle reading. It starts using a new reading every time the power is cycled. Now as far as WOT, there's a preset value in addition to minimum measured. And WOT mode in the computer actually happens at a point lower than full open of the throttle blade.
It is not necessary or desired to have closed throttle = 0 volts and WOT = 5 volts.
Last edited by JohnE; 09-12-2004 at 06:52 AM.
2003 Silver Marauder - Forged Iron Engine, Supercharged, SW Exhaust
2002 White F250 7.3 - Turbo