TPS response...

[Schrade]

Originally Posted by Franke

Schrade, Something else I just read in the driveability and emissions section states that..." voltage should increase at a STEADY rate as throttle is moved toward WOT about 4.6 volts. The ECM has the ability to auto zero the TPS voltage if it between .46 volt and .62 volt. This means that any voltage between .46 and .62 will be determined by the ECM to be 0% throttle". From that statement I gather that the TPS should be linear. Correct?

I read that STEADY part too, just a while ago.

And the answer is, "Not necessarily does it mean the pot is linear."

It means - that IF my TPS sensor works properly, then what I drew as conclusion before, is correct:

if my TPS IS working, then it is safe to assume that the 5V REFERENCE signal INPUT, FROM the ECM, is inversely exponential, and is calibrated for the non-linear LOGARITHMIC resistance of the internal potentiometer. OR, it is calibrated AFTER the 5V REFERENCE signal RETURNS TO the ECM.