Engine Mechanical problem
2001 Volvo S80 6 cyl Front Wheel Drive Automatic 10000 miles
Is there another pressure sensor in the Evaprative Emission Control System other than the fuel tank pressure sensor? Does this fault mean that the sensor is faulty, or does it just mean that there is a leak somewhere?
Volvo has recently provided a software upgrade that may solve your problem and diag is free at the dealer if certain codes exist. See your local dealer and you may get this fixed for free. I work at a Volvo dealer, so this much I know.