Evaporative Emission Control Canister: Testing and Inspection

CHARCOAL CANISTER INSPECTION [LF, L5]

Leakage Inspection

1. Perform the following procedures:

- Assemble the hose used for inspection to port A.
- Cover ports B and C with the caps.

Fuel filter (high-pressure) is a built-in type in fuel pump unit





Fuel filter (high-pressure) is not a built-in type in fuel pump unit






CAUTION:
- Do not apply a pressure 20 kPa {150 mmHg, 5.91 inHg} or more to the charcoal canister for 1 min. or more. Doing so will damage the charcoal canister.

2. Apply pressure (19.6 kPa {147 mmHg, 5.79 inHg}) through the hose, and verify that air does not leak from the charcoal canister.
Fuel filter (high-pressure) is a built-in type in fuel pump unit





Fuel filter (high-pressure) is not a built-in type in fuel pump unit






- If there is airflow, replace the charcoal canister.
- If there is no airflow, perform the following "Airflow Inspection".

Airflow Inspection

1. Perform the following procedure to verify the charcoal canister airflow.

Between port A and port B
- Plug the port C.
Fuel filter (high-pressure) is a built-in type in fuel pump unit





Fuel filter (high-pressure) is not a built-in type in fuel pump unit





- Apply a pressure of 19.6 kPa {147 mmHg, 5.79 inHg} to port A.
- Verify that there is airflow from port B.

- If there is no airflow, replace the charcoal canister.

Between port A and port C
- Plug the port B.
Fuel filter (high-pressure) is a built-in type in fuel pump unit





Fuel filter (high-pressure) is not a built-in type in fuel pump unit





- Apply a pressure of 19.6 kPa {147 mmHg, 5.79 inHg} to port A.
- Verify that there is airflow from port C.

- If there is no airflow, replace the charcoal canister.

Between port B and port C
- Plug the port A.
Fuel filter (high-pressure) is a built-in type in fuel pump unit





Fuel filter (high-pressure) is not a built-in type in fuel pump unit





- Apply a pressure of 19.6 kPa {147 mmHg, 5.79 inHg} to port B.
- Verify that there is airflow from port C.

- If there is no airflow, replace the charcoal canister.