Purge Solenoid Valve
WARNING: This page is about a different car, the 2003 Mazda Protege5, 2003 Mazda Protege, 2003 Mazda MX-5 Miata, 2003 Mazda MPV, and 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
See FUEL EVAPORATIVE SYSTEM (EXCEPT PROTEGE & PROTEGE5) or FUEL EVAPORATIVE SYSTEM (PROTEGE & PROTEGE5) under EMISSION SYSTEMS & SUB-SYSTEMS.