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fuel level sensor a circuit intermittent
The fuel level sensor a circuit is intermittent. A soft magnetic impeller turns around the gap between the magnet and the magnetic pole. When the window on the impeller allows the magnetic field to pass through and unimpeded to the Hall effect sensor, the reading magnetic field is interrupted (because the blade is the medium conducting the magnetic field to the sensor). The impeller opens and closes the magnetic field at the window, causing the friendly Hall effect sensor to be switched on and off like a switch, This is why some automobile manufacturers call Hall effect sensors and other similar electronic devices Hall switches.
The oil level sensor in the oil tank is faulty. Check the oil level sensor and replace it if necessary. There is a problem with the instrument itself. The fault filter of the general instrument is relatively low. The scale of the oil gauge rises suddenly. This is mainly because the connecting rod between the oil level sensor and the float is stuck, so the float can not float up and down normally, so the sensor will not change. Therefore, the pointer of the oil gauge is fixed at the full oil position.
The fuel gauge also has errors, it can not be judged according to the oil gauge on the automobile instrument panel. Most automobile oil gauges drive the electronic sensor through the up and down floating of the float in the oil tank. The sensor transmits the generated electronic signal to the oil gauge pointer and displays it on the oil gauge. The error is large.
Remind owners that when gasoline is added to the fuel tank mouth, excess crude oil will enter the crude oil evaporation system pipeline, resulting in excessive mixture and damage to the engine. Therefore, try not to exceed the safety capacity marked on the vehicle manual when refueling, so as to avoid potential safety hazards.
However, it is not recommended that the red light of the fuel tank should be on and the fuel tank should be refilled. First of all, in the case of a small amount of fuel, intense driving will affect the operation of the fuel pump due to the large roll of the vehicle. The second is that after the fuel alarm, it is uncertain whether the gas station can be found within the range (at high speed). Moreover, when the fuel volume alarm light is on, it is only limited to finding a gas station in a short distance. If it is far away, there is a risk of damaging the oil pump and fuel volume sensor.
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