how to install a water temp gauge

• 2023-03-15

Some cars do not have a water temperature gauge, but only a water temperature indicator. How to install a water temp gauge? the water temperature indicator can be replaced with a water temperature gauge. If you want to modify it, it must be installed on the water supply pipe. If you want to use the sensor plug of the original car, it may have different resistance values, resulting in inaccurate water temperature indication. You can buy a water temperature sensor. If you use the previous water temperature sensor, 1. You can add something like resistance to change the indication of water temperature, which is not much different from the indication of your water temperature gauge. However, it needs a good calculation, and it is not easy to achieve the purpose! 2. To be frank, because the water temperature sensor (or water temperature gauge) is not easy to use, even if it is not accurate, as long as you record the location of the normal water temperature, it will be fine. As long as the water temperature is not higher than the normal water temperature (the location we recorded), the water temperature will be fine.

The water temp gauge sensor is installed on the water channel and water tank of the car. The function of the first water temperature sensor is relatively simple, which is to drive the change of the water temperature meter through the change of its internal resistance to change the current through the change of the resistance of the sensor , and indirectly tell people the working temperature of the engine . The second type of water temperature sensor has no change in structure, but its function is to provide an analog signal of temperature change to the engine control unit. Its power supply voltage is 5V power supplied by the control unit , and the signal returned to the control unit is 1.3V-3.8V linear change signal. The main function is to tell the engine control unit the current temperature. On the other hand , its signal is very important for the control unit. The main reason is that the engine has different working methods at different working temperatures. For example, when the engine is below 86 ℃ , it should spray 10% more oil than the normal temperature, in order to make the engine warm up quickly and reduce the low temperature wear of the engine.