Just looked at the service procedure for a 2001 for that code, this is what it stated.
DTC DETECTING CONDITION:
Light lit because there were 2 consecutive driving cycles with fault
TROUBLE SYMPTOM:
•Gasoline smell
•There is a hole of more than 1.0 mm (0.04 in) dia. in evaporation system or fuel tank.
Check if any other codes present, if so investigate/troubleshoot
Check Fuel Cap
Check Fuel Filler Pipe Packing
Check Drain Valve - should make noise when activated
Check Purge Control Solenoid - should make noise when activated
Check Evaporative Emission Control Sysytem Line - no hole of 1mm or more
Check Cannister - no hole of 1mm or more
Check Fuel Tank - no hole of 1mm or more
Check any other mechanical trouble in evaporative emmission control system - no hole of 1mm or more
Not sure if this is directly applies to a 2000 model year but it probably is similar, sounds like there is a solenoid or valve that could be dead or a small hole somewhere.