Evap Canister

ON BOARD REFUELING VAPOR RECOVERY (ORVR)


Component Function Check

1.CHECK ORVR FUNCTION
Check whether the following symptoms are present.
- Fuel odor from EVAP canister is strong.
- Cannot refuel/Fuel odor from the fuel filler opening is strong while refueling.
Is any symptom present?
YES >> Go to Symptom Related Diagnostic Procedures.
NO >> INSPECTION END





EVAP CANISTER


Inspection






Check EVAP canister as per the following:
1. Block port (B).
2. Blow air into port (A) and check that it flows freely out of port (C).
3. Release blocked port (B).
4. Apply vacuum pressure to port (B) and check that vacuum pressure exists at the ports (A) and (C).
5. Block port (A) and (B).
6. Apply pressure to port (C) and check that there is no leakage.