Passport 4WD V6-3.2L SOHC (6VD1) (1994)
Throttle Position Sensor: Testing and Inspection
Use a "Scan Tool" to check TP Sensor output voltage with Throttle closed, should be under 0.85 volts. If over 0.85 volts, check for binding Throttle
Shaft, or TP Sensor Lever. If all OK, replace TP Sensor.