Throttle Position Sensor

NOTE: Supra 3.0L Turbo (2JZ-GTE) contains a main throttle position sensor and a sub-throttle position sensor on throttle body. See Figure. Following procedure is for main throttle position sensor. For adjustment of sub-throttle position sensor, see SUB-THROTTLE POSITION SENSOR .

Disconnect electrical connector from Throttle Position Sensor (TPS). Loosen TPS mounting screws. Connect ohmmeter between terminals IDL and E2. See Fig 1 and Fig 2.
Apply vacuum to throttle opener (if equipped). To set initial clearance, insert proper thickness feeler gauge between throttle stop screw and throttle lever. See THROTTLE POSITION SENSOR ADJUSTMENT table.
With ohmmeter showing no continuity, rotate TPS clockwise until continuity exists. Tighten TPS mounting screws. Using specified feeler gauge, recheck adjusted clearance. Disconnect ohmmeter. Install electrical connector on TPS.

THROTTLE POSITION SENSOR ADJUSTMENT

Engine/ Application

Initial Clearance In. (mm)

Adjusted Clearance In. (mm)

Ohmmeter Reading

Turbo ⁽¹⁾⁽²⁾

.026 (.66)

.021 (.53)

Continuity

.028 (.71)

No Continuity

Non-Turbo ⁽¹⁾

.020 (.51)

.016 (.41)

Continuity

.024 (.61)

No Continuity

⁽¹⁾	Apply vacuum to throttle opener before checking TPS adjustment.

⁽²⁾	Turbo models contain a main throttle position sensor and a sub-throttle position sensor on throttle body. See Figure. Procedure is for main throttle position sensor. For adjustment of sub-throttle position sensor, see SUB-THROTTLE POSITION SENSOR .

Fig 1: Adjusting Throttle Position Sensor (3.0L)

Fig 2: Adjusting Throttle Position Sensor (3.0L Turbo)