Professional China Mg Car Rx8 Catalog - SAIC MG RX5 Water temperature sensor plug -10108855 12641073 – Zhuomeng

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What’s the difference between a water temperature sensor and a water temperature sensor plug?

The water temperature sensor, also known as the coolant temperature sensor, is generally 2-wire system, its main use is 1, to provide engine coolant temperature parameters to the controller of the engine management system (ECM). This temperature parameter can control the fan adapter, so as to control the cooling fan of the engine. 2. The water temperature signal is an important parameter for the calculation of air/fuel ratio (air fuel ratio), ignition advance Angle (ignition time) and other calibration Settings.

The water temperature plug serves only one purpose: to provide engine coolant temperature parameters to the vehicle dashboard. Which is to provide a temperature signal to the vehicle’s instrumentation

You may not have a water temperature plug on the engine, but you must have a water temperature sensor! Because the water temperature sensor to give the engine computer a signal, the generator computer according to the sensor signal to control the engine fan, fuel injection, ignition, and other such as automatic transmission, automatic air conditioning and so on

How is the signal of the water temperature sensor detected?

The interior of the water temperature sensor is mainly a thermistor, which can be divided into positive and negative temperature coefficients. The positive temperature coefficient means that the higher the water temperature is, the greater the resistance will be, while the negative temperature coefficient means that the positive value of the water temperature sensor decreases after the water temperature rises. The water temperature sensor used in cars has a negative temperature coefficient.

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