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The Throttle Position Sensor (TPS) in Buick Century vehicles applies significant management to the air-fuel mixture for the purpose of combustion. By sensing the throttle position, TPS relays the immediate signals to fuel injection to ensure change in fuel supply depending on power need from the engine computer. Such a feedback loop occurs so often, let alone several time per second, for optimal acceleration, cruising, and deceleration. Buick Century models have incorporated basically potentiometric TPS and advanced non-contact kinds that are Hall effect based. The latter is beneficial over older sensors since they do not touch the given surface preventing wear and boosting reliability. Moreover, exotic sensors such as the Closed Throttle Position Sensor (CTPS) for the electronic throttle control augments the engines' performance and fuel economy. In general, the Throttle Position Sensor is critical for the appropriate running of Buick Century vehicles.