Fuel Level Sender And Sensor
WARNING: This page is about a different car, the 2002 Saturn LW300 and 2002 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.
The fuel level sender is a variable resistor that is read by ECM. The ECM reads resistance and controls the fuel level gauge in response to float movements of sender.
The level sender is mounted on the module housing and is a snap-lock attachment. The sender and float are serviced as a unit.