Sub-Throttle Position Sensor: Turbo

Remove screws and sub-throttle actuator. See Fig 1. Disconnect electrical connector from sub-throttle position sensor.
Ensure no clearance exists between throttle stop screw and throttle valve gear with sub-throttle valve fully closed. Perform STEP 1. See Fig 2.
Place sub-throttle valve in fully closed position. Loosen sub-throttle position sensor mounting screws. Connect ohmmeter between terminals IDL and E2. Perform STEP 2. See Fig 2.
To set initial clearance, insert .018" (.45 mm) feeler gauge between throttle stop screw and throttle valve gear. Perform STEP 3. See Fig 2.
Gradually rotate sub-throttle position sensor clockwise until ohmmeter deflects. Tighten sub-throttle position sensor mounting screws.
Remove feeler gauge. Insert a .016" (.41 mm) feeler gauge. Ensure continuity exists. Remove feeler gauge. Insert a .019" (.48 mm) feeler gauge. Ensure continuity no longer exists. Reinstall sub-throttle actuator. Install electrical connector on sub-throttle position sensor.

Fig 1: Locating Sub-Throttle Actuator, Main Throttle Position Sensor & Sub-Throttle Position Sensor (Turbo)

Fig 2: Adjusting Sub-Throttle Position Sensor (Turbo)