Throttle Position Sensor

WARNING: This page is about a different car, the 1995 Toyota Previa. However, it is still accessible from the selected car via links, so may be relevant.

Disconnect electrical connector from Throttle Position Sensor (TPS). Loosen TPS mounting screws. Connect ohmmeter between terminals IDL and E2. See Fig 1.
Apply vacuum to throttle opener (if equipped). To set initial clearance, insert proper thickness feeler gauge between throttle stop screw and throttle lever. See the 4-CYLINDER 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.

4-CYLINDER THROTTLE POSITION SENSOR ADJUSTMENT ⁽¹⁾

Application Type

Initial Clearance

Adjusted Clearance

Ohmmeter Reading

Supercharged

.029 (.74)

.020 (.51)

Continuity

.037 (.95)

No Continuity

Non-Supercharged

.032 (.81)

.024 (.61)

Continuity

.041 (1.04)

No Continuity

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

Fig 1: Adjusting Throttle Position Sensor