Throttle Position Sensors

Replacement Parts > Emission Control > Sensors

Throttle Position Sensors

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What is a Throttle Position Sensor?

A Throttle Position Sensor (TPS) is a component that measures the angle of the throttle valve, allowing the vehicle’s computer to monitor and adjust the air/fuel ratio for optimal performance.

What is the purpose of a Throttle Position Sensor?

The purpose of a Throttle Position Sensor is to measure the angle of the throttle valve and relay that information to the vehicle’s computer. This allows the computer to adjust the air/fuel ratio for optimal performance.

How do I determine if my Throttle Position Sensor is faulty?

If your Throttle Position Sensor is faulty, you may experience a variety of symptoms including rough idle, stalling, reduced fuel economy, or the vehicle not starting at all. To determine if it is faulty, you can use an OBD-II scanner to check the TPS readings.

Can a faulty Throttle Position Sensor cause damage?

Yes, if your Throttle Position Sensor is faulty, it can cause damage to your engine. A faulty TPS can cause the vehicle to run lean, which can lead to serious engine damage.

How do I replace a Throttle Position Sensor?

Replacing a Throttle Position Sensor is a relatively straightforward process. Here are the steps:

  1. Disconnect the engine’s negative battery cable.
  2. Remove the air intake hose from the throttle body.
  3. Remove the TPS from the throttle body.
  4. Install the new TPS on the throttle body.
  5. Reconnect the air intake hose to the throttle body.
  6. Reconnect the negative battery cable.


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