The Throttle Position Sensor (TPS) being used on the gasoline fuel injected Tempo/Topaz uses, a rotary tang to control the throttle shaft blade. When removing or installing a TPS, be careful not to bent any of these tangs.
To test or adjust a TPS, a digital volt/ohmmeter is needed. Proceed as follows:
- Connect a suitable digital volt/ohmmeter to terminal A (output terminal) and terminal B (ground) of the TPS.
- Turn the ignition switch to the ON position and check the voltage reading at closed throttle. If the voltage reading is not 0.0-1.1 volts, loosen the TPS mounting screws and rotate the TPS until the correct voltage is obtained.
- If the correct TPS voltage cannot be obtained, replace the TPS.
- Slowly open the throttle and observe the digital volt/ohmmeter. The voltage should gradually increase to 4.0 volts at wide open throttle.