Fuel Gauge Sender: Description and Operation

FUEL LEVEL SENSOR
1. The fuel pump module and pump assembly consists of a variable resistor controlled by the level of an attached float in the fuel tank.
2. When the fuel level is low, resistance in the fuel pump module is low and movement of the fuel gauge indicator dial is minimal (from EMPTY position).
3. When the fuel level is high, the resistance in the fuel pump module is high and gauge indicator dial movement is greater (further from the EMPTY position).