Fuel Evaporative System: Notes

NOTE: Fuel evaporative system is referred to as fuel EVAP system and may contain different components depending on application. See Figure-Figure . When testing fuel EVAP system components, it may be necessary to use proper illustration to determine component location.

NOTE: On Avalon, Camry, Camry Solara, Highlander, Sequoia, Sienna and 4Runner, an On-Board Refilling Vapor Recovery (ORVR) system is used to recover fuel vapors into charcoal canister that are generated during refueling. ORVR system consists of fuel inlet pipe, overfill check valve, cut-off valve and charcoal canister. Overfill check valve may also be referred to as On-Board Refueling Vapor Recovery Overfill Check Valve (ORVR-OCKV) or fill check valve. Cut-off valve may also be referred to On-Board Refueling Vapor Recovery Cut-Off Valve (ORVR-COV). For testing of fuel EVAP system and ORVR system, see appropriate FUEL EVAP SYSTEM TEST.

NOTE: Charcoal canister may also be referred to as EVAP canister.