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Sub-Throttle Position (Sub-TP) Sensor: Adjustment

  1. Disconnect sub-TP sensor connector. Loosen sub-TP sensor mounting screws. Remove sub-throttle actuator. See Fig 1. Ensure sub-throttle valve is fully closed and sub-throttle valve gear is touching stop screw. Insert feeler gauge between gear and stop screw. See SUB-TP SENSOR ADJUSTMENT  table.
  2. Connect ohmmeter between terminals IDL2 and E2 of sub-TP sensor connector. See Fig 2. Rotate sub-TP sensor counterclockwise until there is no continuity, then rotate it clockwise until there is continuity. Tighten sub-TP sensor mounting screws. Inspect sub-TP sensor again.
SUB-TP SENSOR ADJUSTMENT

Application Feeler Gauge Thickness
SC400 .012" (.30 mm)
Fig 1: Locating Sub-Throttle Valve Stop Screw
G94H44229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Fig 2: TP Sensor & Sub-TP Sensor Connector Terminal ID
G93E78166Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002