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, 48 gf/cm2, 0.68 psi), blow into port A and check that air flows without resistance from the other ports.




- Blow air (4.71 kPa, 48 gf/cm2. 0.68 psi) into port B and check that air does not flow from the other ports.
- If a problem is found, 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.