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how to install a fuel level gauge dodge d150
Operating principle of fuel gauge:
Today's vehicles generally have a fuel pump in the fuel tank. The computer controls it to extract fuel and transport it to the engine.A float is installed on the fuel pump. The float itself is connected to a sliding resistance. The float floats up and down in the gasoline. The change of liquid level causes the change of resistance, Different electrical signals are thus transmitted to the engine computer. Finally, after computer calculation, it is confirmed how much fuel is in the tank.
It seems that the working principle of the fuel gauge is quite scientific, but in fact, there are many factors that may cause the inaccurate display of the vehicle fuel gauge. For example, the float is stuck by the wire in the fuel tank, or the wire transmitting electrical signals from the fuel pump fails, or the engine computer has problems, many factors will affect the display of the automobile fuel gauge. The sensor is resistive, with the red wire connected to the signal and the blue wire connected to the negative pole. After the fuel tank is placed, the highest fuel level shall not be 2.5 meters higher than the diesel generator set base. If the fuel level of the large fuel depot is higher than 2.5 meters, a daily fuel tank shall be added between the large fuel depot and the diesel generator set so that the pressure of direct fuel delivery is not more than 2.5 meters.
It is mainly about one positive and one negative wire on the fuel meter, of which the positive wire must have electricity, and the resistance on the fuel float must also have one incoming and one outgoing wire, and then it can be connected in series with the two wires on the fuel meter. The negative wire connected in series must be grounded. The fuel gauge is generally located in the front of the driving position of the vehicle and on the same dial as the water temperature, speed, speed and other indicators. Each gauge is distinguished by a simple icon. The fuel gauge is represented by a rectangular icon.
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