Chrysler
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    Fuel Level Sending No Change Over Miles Conditions
Cause:
    Engine running, then the PCM received an input from the BCM that the low fuel sense circuit did not change a calibrated amount over a calculated number of miles

Ford
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    EVAP System Small Leak Conditions
Cause:
    Cold startup, engine running at off-idle conditions, then the PCM detected the presence of a small leak (a leak of more than 0.040") in the EVAP system

Generic
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    Fuel Level Sensor "A" Circuit

GM
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    Fuel Level Sensor Performance Conditions
Cause:
    Engine running, then PCM detected Fuel Level sensor inputs that indicated the fuel level did not change more than 1 6% (4 counts) in 120 miles (34 miles on VIN W) and P1601 is set (some models)

Nissan
Type:
    Powertrain - Auxiliary Emission Controls - ISO/SAE Controlled
Description:
    Fuel tank level sensor - signal malfunction
Cause:
    Wiring open/short circuit, fuel tank level sensor