EVAP System
WARNING: This page is about a different car, the 2002 Land Rover Range Rover, 2002 Land Rover Freelander, and 2002 Land Rover Discovery. However, it is still accessible from the selected car via links, so may be relevant.
Discovery Series II vehicles may be equipped with either a positive pressure type EVAP testing system or vacuum type EVAP testing system. Each system has specific components not used on each type system. Freelander vehicles are only equipped with a positive pressure type EVAP testing system. Range Rover vehicles are only equipped with a vacuum type EVAP testing system. On all models, EVAP system testing is performed using vehicle self-diagnostic system. See appropriate SELF-DIAGNOSTICS article.