What does excessive resistance in fuel level sensor 1 mean?

[Duncan]

Fuel level sensor 1 is excessively dirty, the fuel quality is poor, the sliding resistor on the fuel level sensor is damaged, the fuel gauge sensor is faulty, the fuel pump control unit is faulty, or there is a fault in the wiring harness between the instrument and the fuel level sensor. Any of these conditions can cause excessive resistance in fuel level sensor 1. Below is an introduction to related knowledge about fuel level sensors: 1. Definition: This sensor detects the position (height) of fuel in a container by measuring the change in capacitance between the sensor housing and the sensing electrode caused by the fuel entering the container, and converts this change into a current signal. 2. Working principle: The sensing part of a capacitive fuel level sensor is a coaxial container. When fuel enters the container, it causes a change in capacitance between the sensor housing and the sensing electrode. This change is converted by the circuit and undergoes precise linear and temperature compensation, outputting a 4-20mA standard signal to the display instrument.