2. Check the fuel gauge wires. The fuel gauge wires are the wires that connect the fuel level sensor to the fuel gauge. If the wires are damaged or not connected properly, the fuel gauge will not be able to receive a signal from the sensor. You can check the wires by visually inspecting them for damage. If the wires are damaged, you will need to repair or replace them.
3. Check the fuel gauge. If the fuel level sensor and the fuel gauge wires are working properly, the problem may be with the fuel gauge itself. You can check the fuel gauge by removing it from the dashboard and inspecting it for damage. If the fuel gauge is damaged, you will need to replace it.
4. Reset the fuel gauge. If the fuel gauge is still not working properly, you may need to reset it. You can reset the fuel gauge by disconnecting the battery for a few minutes. This will erase the fuel gauge's memory and allow it to start fresh.