Fuel Tank Temperature Sensor
WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Fuel Tank Temperature (FTT) sensor is a thermistor mounted inside the High Pressure Lock-Off (HPL) and is not serviceable separately from the HPL. See HIGH PRESSURE LOCK-OFF SOLENOID under RELAYS & SOLENOIDS.