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The Throttle Position Sensor (TPS) monitors the position of the throttle valve, providing crucial data to the engine control unit (ECU) for managing fuel injection and ignition timing. A malfunctioning TPS can lead to erratic engine behavior, including rough idling, stalling, hesitation during acceleration, and poor fuel efficiency. Regularly inspect the TPS for signs of wear, damage, or malfunction, and replace it as needed according to your vehicle’s maintenance schedule, typically every 60,000 to 100,000 miles. Maintaining a healthy TPS ensures accurate throttle positioning, enhances engine performance, and prevents issues related to improper fuel and ignition management.