The monitoring of the ignition and fuel timing is crucial if you are to ensure the efficient performance of the engine. And when it comes to that, you need special sensors to do the monitoring. One of these sensors is the Throttle Position Sensor. The Throttle Position Sensor measures the position of the throttle and the rate of change of that position to determine how much air the engine receives. To do this, the sensor sends a specific amount of electrical signal to the engine control unit (ECU) depending on the throttle position. The ECU then controls the amount of fuel entering the cylinder to match the available amount of air. That way, rich and lean mixtures are prevented. Today, most vehicles use either the non-contact type or the potentiometric type of sensor. The former relies on a magnet and a hall sensor in order to work while the latter works with the use of two metal components that come in contact with one another. If you're looking to replace your old Throttle Position Sensor with a new one, you've come to the right place: Car Stuff. Our catalog contains one of the biggest collections of throttle position sensors from top manufacturers, all sensors offered at discounted prices. Just place your order right here and we'll deliver the part right away.