How do you adjust the Throtle Position Sensor on a '96 Mercury Villager?

Disconnect the TPS sensor connector. It's the lower of the 2 connectors. The other one is the idle sensor. Turn ignition key to on. At throttle fully closed, the reading on termial C of the connector should read 0.4v to 0.5v. (Looking INTO the connector with the notch on the connector pointing UP, C is the right most pin) At throttle fully open, the reading should be 4v. If readings are wrong Loosen the 2 holding screws (only enough to twist the sensor). Adjust accordingly. Tighten the screws.