Evaporative Emission Control Canister: Testing and Inspection

1. REMOVE CHARCOAL CANISTER.
- Disconnect the EVAP hoses (vacuum hose and air hose) from charcoal canister.
- Disconnect the grommet on the check valve from the bracket, and remove the charcoal canister.
- Remove the check valve from the hose end on the charcoal canister.





2. VISUALLY INSPECT CHARCOAL CANISTER Look for cracks or damage.





3. CHECK FOR CLOGGED FILTER AND STUCK CHECK VALVE.
- Using low pressure compressed air (4.71 kPa (48 kgf/ cm2, 0.68 psi)), blow into port A and check that air flows without resistance from the other ports.





- Blow low pressure compressed air (4.71 kPa (48 kgf/ cm2, 0.68 psi)) into port B, and check that air does not flow from the other ports.
- If operation is not as specified, replace the charcoal canister.





4. CLEAN FILTER IN CANISTER.
- Clean the filter by blowing 294 kPa (3 kgf/cm2, 43 psi) of compressed air into port A while holding port B closed.

NOTICE:
- Do not attempt to wash the canister.
- No activated carbon should come out.

5. REINSTALL CHARCOAL CANISTER.