Fuel Level Sensor (FLS): Description
WARNING: This page is about a different car, the 2004 Kia Amanti. However, it is still accessible from the selected car via links, so may be relevant.
Fuel Level Sensor (FLS) is involved with the Fuel Pump Assembly. It senses the remained fuel volume and transfers the signal to ECU and fuel gauge by using a variable resistor.
Courtesy of KIA MOTORS AMERICA, INC.