The onboard computer is capable of calculating the idling or when the voltage received is below 0.7v, the full load or when the voltage received is about 4.5v, and the throttle valve opening speed. The onboard computer, upon receiving the data or voltage, will be able to determine or identify the throttle position. It is the reference signal going through a variable resistance that decreases to a new voltage which will then be sent back to the car's computer. The second wire is the one that closes the sensor circuit to the ground. The +5v is the reference signal sent by the onboard computer which enters the throttle position sensor. The first wire has a +5 voltage applied to the sensor resistive layer. Like mentioned earlier, cars usually have a throttle position sensor that is a 3 wire potentiometer. The throttle position sensor sends data to the car’s onboard computer about the rate of acceleration, deceleration, idling, and the fully open throttle valve state. A potentiometer TPS sensor can provide a variable resistance which can vary depending on the throttle valve’s position. This type of TPS has a power supply, usually of 5 volts, a ground, and a signal return wire. Many throttle position sensors equipped in vehicles are 3 wire potentiometers. It helps the fuel system get the right amount of fuel and air mixture, depending on the throttle’s position and the other data sent by the other sensors placed throughout the car.Ī throttle position sensor can be usually found on the throttle valve spindle, making it easier to have access to and monitor its position. What is a throttle position sensor? A throttle position sensor or TPS is responsible for keeping an eye on the throttle valve position in internal combustion engines. They send the collected information to the car’s onboard computer so it can adjust the performance specifications of the car and the throttle position sensor is one of them. They are used to monitor the conditions throughout the car’s different systems. Sensors that have various functions or tasks. What is a throttle position sensor? How does it work and why is it important? Many car owners are probably asking these questions, especially when their vehicles are having some throttle position sensor issues.Ī car is equipped with a lot of different sensors.
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