DTC P1492: EVAP Tank Pressure Sensor. Value Too Low In Depressurized State At The Same Time As The Fuel Level Sensor Diagnosis Has Reported A Fault.: Notes
WARNING: This page is about a different car, the 2003 Saab 9-3 and 2002 Saab 9-3. However, it is still accessible from the selected car via links, so may be relevant.