The throttle position sensor (TPS) is an essential component in modern vehicles that monitors the position of the throttle valve. It sends real-time data to the engine control unit (ECU), which adjusts the air-fuel mixture for optimal engine performance. This helps improve fuel efficiency and reduces emissions. When the driver presses the accelerator pedal, the TPS detects the angle of the throttle and relays this information to the ECU. If the TPS malfunctions, it can lead to poor engine performance, stalling, or increased fuel consumption. Regular maintenance can help ensure the TPS functions correctly.