Purge Control System

1. Disconnect the purge hose from the evaporative emission (EVAP) canister, and connect the special tool (purge flow indicator) between the EVAP canister and the purge hose.
2. The vehicle should be prepared as follows before the inspection and adjustment.
- Engine coolant temperature: 80 - 95° C (176 - 203° F)
- Lights, cooling fan and accessories: OFF
- Transaxle: Neutral (A/T for P range)
3. Run the engine at idle for 3 minutes or more.
4. Check the purge flow volume when sudden racing is carried out several times.
Standard value:
Momentarily 20 Cubic.cm/sec. (2.5 SCFH) or more
5. If the purge flow volume is less than the standard value, check it again with the vacuum hose disconnected from the EVAP canister.
If the purge flow volume is below the standard values, check for blockages in the vacuum port and vacuum hose, and also check the evaporative emission purge solenoid and the purge control valve.
If the purge flow volume is at the standard value, replace the EVAP canister.