Throttle Position Sensor (TPS): Essential for Engine Performance

Throttle Position Sensor (TPS): Essential for Engine Performance

The Throttle Position Sensor (TPS) is a critical component in modern vehicles, responsible for monitoring the position of the throttle plate within the throttle body. This data is crucial for the Engine Control Unit (ECU) to manage fuel injection, ignition timing, and other key engine functions.

How It Works 

The TPS usually uses a potentiometer or hall-effect sensor to measure the position of the throttle plate. When the driver presses the accelerator pedal, the throttle plate opens, and the TPS sends a corresponding voltage signal to the ECU. The ECU then adjusts the engine’s operation based on this information.

Importance of the TPS 

A precise TPS reading is essential for achieving optimal engine performance and drivability. A faulty TPS can cause several problems, including:

- Idle issues

- Stalling

- Hesitation during acceleration

- Reduced fuel efficiency

- Check engine light activation

Symptoms of a Failing TPS 

- Engine stalling or rough idle

- Hesitation or surging during acceleration

- Loss of power

- Poor fuel economy

- Check engine light illuminated 

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