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auto gauge fuel level wiring diagram
Automatic instrument fuel level wiring diagram with four lines.The positive and negative poles also have a direct connection to the oil float, and the negative pole of the float is directly grounded.
1.On the oil meter, the electromagnetic pointer meter used in conjunction with the resistance sensor, the yellow wire is connected to the resistance sensor, and the other two are connected to the positive and negative poles of the power supply. Because the sensor's lifting resistance does not necessarily change, it must be tested before wiring.
2.On the fuel gauge of the car, F represents a full tank of oil, and E in the direction of the red grid represents insufficient oil. However, when the pointer of the fuel gauge points to the red grid in the direction of E, there is actually about three points of the total capacity in the fuel tank. One to one-quarter of the gasoline is not very low. At this time, the remaining gasoline in the fuel tank is at least enough to run more than tens of kilometers (the straddle bike can run more), and it is enough to refuel in time. No matter how many wires there are, it is mainly two wires on the oil gauge, 1 positive and 1 negative. The positive wire 1 must have electricity (it can be connected from the electric door lock), and the resistance on the oil float is also 1 in and 1 out. One wire, and then connect it in series with the two wires on the oil gauge. The negative-grade wire 1 after the series connection must be grounded.
Fuel system pressure relief steps:
The first step is to unscrew the cylinder head and shut down the engine.
The second step is to cut off the fuel pump circuit.
The third step, the ideal method for some cars is to remove the gasoline pump fuse (there may be more than one). Depending on the make, some cars are designed to have the fuse removed and the fuel injector or the entire fuel system inoperative.
The fourth step is to start the engine.
The owner also makes a judgment on whether to refuel or how much mileage can be driven according to the display of the fuel gauge. The fuel gauge is like a warning light for the life of the car. The fuel gauge is an indicator on the engine that can display the amount of fuel, either by needle or digital.
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