Throttle Position Sensor: Description and Operation

1992 Chevrolet Lumina V6-204 3.4L DOHCSECTION Description and Operation

Typical Throttle Position Sensor (TPS) Wiring:




Throttle Position Sensor:







PURPOSE
The throttle position sensor is part of the computerized engine control system, and relates the throttle open position to the ECM.


OPERATION
The throttle position sensor is part of the computerized engine control system, it relates the throttle open position to the ECM. For complete information, refer to COMPUTERIZED ENGINE CONTROLS


LOCATION
The throttle position sensor is mounted on the side of the throttle body opposite the throttle lever.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.