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autometer water temp gauge adapter
Generally speaking, the autometer water temp gauge sensor adapter on the car has three to four plugs, but the water temperature sensor has only one or two plugs. The signal from the water temperature sensor is transmitted to the ECU, which on the one hand controls the electronic fan with this signal, and on the other hand, when the engine is cold started or the common temperature is low, the engine will correct the fuel injection amount according to the water temperature signal. So as to quickly increase the engine temperature to the optimal working temperature and shorten the warm-up time by increasing the fuel injection amount. If the engine has high working intensity and the temperature is too high, the ECU can also reduce the fuel injection amount according to the water temperature signal to protect the engine.
The water temperature sensor adapter has two functions: instrument display; The detection of water temperature provides fuel injection basis for the computer. When the water temperature is low, fuel injection will be added. It will work abnormally and the engine will work abnormally. If the water temperature sensor is damaged and the computer cannot detect the water temperature signal, a backup program (water temperature 80) will be provided to prevent the engine from stopping. However, the engine will not work normally at this time, which will cause the cold car to be difficult to start.
The water temperature on the vehicle is generally displayed by the instrument, but the source of data (signal) is usually provided directly or indirectly by two types of temperature sensors on common vehicles at present. Therefore, we can not simply talk about "water temperature gauge sensor", but only several "types" of water temperature sensors, and how to make the instrument display correct water temperature parameters or data.
Water tempe sensor adapter is a very important sensor in automobile. In some more and more high-end vehicles, the role of water temperature sensor is becoming more and more important. A suitable and stable water temperature sensor can effectively improve the overall performance of the vehicle. Basic classification the function of the first type of water temperature sensor is relatively simple, that is, through the change of its internal resistance and the change of the sensor to change the current to drive the change of the water temperature gauge, and indirectly tell people the working temperature of the engine.
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