Operation

Evaporative System Monitoring

Evaporative Emission Control System and ORVR System: This system consists of the following items:

• Fill Vent Valve
• Fuel Cut Valve
• Fuel Cut Valve (Roll-Over)
• Two-Way Valve (Pressure/Vacuum Relief)
• Fuel liquid/vapor separator, installed near the filler neck tube
• Charcoal canister, installed under the rear floor on the left side member and protector
• Hoses and Various Connections

When refueling, ambient air is drawn through the filler neck so that fuel vapor is not released into the air. Fuel vapor in the tank is then forced to flow into the canister through the vent valve. The fuel liquid/vapor separator isolates liquid fuel and passes only clean vapor to the charcoal canister. While the engine is running, vapor stored in the canister is drawn into the intake manifold and then into the engine combustion chambers. Through this purge process, the charcoal canister is cleaned and restores its absorption capacity.

1. Fuel Tank Cap 2. Filler Neck 3. Fuel Cut-Off Valve 4. Fuel Tank 5. ORVR Valve 6. 2-Way and Roll-Over Valve 7. Evaporative Hose

8. Evaporative Hose 9. Charcoal Canister 10. Canister Close Valve (CCV) 11. Fuel Feed Line 12. Fuel Tank Pressure Sensor (FTPS) 13. Purge Control Solenoid Valve (PCSV)