July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!
Fuel Level Sensor: Description and Operation
The fuel level input comes across the CCD Bus from the Body Control Module. The input is used for the Fuel System and Misfire Monitors. Refer to On-Board Diagnostics. If the fuel level is below approximately 1/16 of a tank the Fuel System and Misfire monitors will be disabled.