Originally Posted by imlachg1
From:
http://www.integra.orcon.net.nz/tps
You need to connect the voltmeter to the ground wire and the other one to the fluctuating wire by exposing some of the wires. Loosen the screws and shift the TPS around until it gives a voltage of 0.45 Volts when the throttle is CLOSED. It doesn't matter what it says at open throttle.
Well. It's suppose to read 4.5 volts at WOT. But if you get .45 at closed, it should hit 4.5 automatically. I always read my reading at WOT to be sure, and it hit 4.5xxx. If it doesn't show 4.5 at WOT, but it shows .45 at closed, there could be a problem with the TPS.