Hi dewill,
you can allso adjust the TPS with a volt meter,
with the engine at the correct idle speed you connect a volt meter to the wires coming out of the sensor, push a probe into the rear of the yellow wire and connect the positive of the meter, and push a probe into the rear of the black/blue wire and connect the negitive of meter.(DO NOT LET ANY OF THE WIRES SHORT OR GO TO GROUND) The voltage at idle should be 0.63 volts-0.73volts. If it is not rotate the TPS clockwise or anti clockwise untill you have a reading between 0.63 and 0.73 volts
Hope this helps you.
V-tec