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fuel level sensor a circuit high cost
The fuel level sensor a circuit high cost, the circuit and sensor may have faults. Please ask a professional for maintenance.
Fuel level sensor fault check ignition off, disconnect the connector on the fuel level sensor. Test whether the resistance between the fuel level sensor ground circuit terminal 5 and the grounding is less than 5 Ω. If the specified range is exceeded, test the ground circuit for an open or high resistance. Ignition on, test whether the voltage between the terminal 5 of the fuel level sensor ground circuit and the terminal 1 of the fuel level sensor signal circuit is within the specified voltage range. If it is lower than the specified range, test whether the fuel level sensor voltage circuit is short circuited to the ground.
The fuel level sensor uses the principle of a buoy and variable resistance in the fuel tank to transmit the fuel level in the fuel tank to the electronic control module in the form of an electrical signal. If the electronic control unit (ECU) finds that the fuel level input signal is outside the calibrated range, this fault code will appear.
The fuel sensor fault diagnosis is very simple. Unplug the sensor terminal, turn on the ignition switch, and ground the fuel gauge terminal intermittently to see if the fuel gauge reacts. If it does not, it is not a sensor fault. If it does, it is a sensor fault. In this case, the camshaft position sensor is usually overhauled, disassembled and inspected to see if there is any problem with the camshaft position sensor. Under normal conditions, there will be no problem with the circuit.
It is recommended to check the circuit and the fuel position sensor. If the fuel level sensor a circuit high cost , the sensor is installed on the high-pressure main pipe to directly measure the fuel temperature flowing through the return pipe. The density and viscosity of the fuel change with the fuel temperature. The ECU corrects the fuel flow according to these data. In the return line from the fuel pump to the fuel cooler. It is used to detect the fuel temperature. The engine electronic control unit uses the fuel temperature signal to calculate the injection starting point and injection quantity.
If the voltage of the oil level sensor is too high, there will be strong gas flowing in the engine, and the fault codes erased by the computer will continue to appear. Therefore, the sensor voltage is too high, and the fault can be solved only by replacing it with a new one.
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