Evaporative Emission Control Canister: Testing and Inspection

CHARCOAL CANISTER INSPECTION





1. Remove 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 (0.048 kgf/sq.cm, 0.68 psi)), blow into port C and check that air flows without resistance from the other ports.





- Blow air (4.71 kPa (0.048 kgf/sq.cm, 0.68 psi)) into port A, and check that air does not flow from the other ports.





- Blow air (4.71 kPa (0.048 kgf/sq.cm, 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/sq.cm, 43 psi) of compressed air into port C while holding port A and B closed.

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

5. Reinstall charcoal canister.