Charcoal Canister Inspection

Leakage Inspection 

1. Perform the following procedures:
   • Do not operate CV solenoid valve.
   • Assemble the hose used for inspection to port A.
   • Cover ports B and C with the caps.

   Courtesy of MAZDA MOTORS CORP.

   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.

Courtesy of MAZDA MOTORS CORP.

• If there is airflow, replace the charcoal canister. (See CHARCOAL CANISTER REMOVAL/INSTALLATION ).
• If there is no airflow, perform the following "Airflow Inspection". (See Airflow Inspection below).

Airflow Inspection 

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

   Between port A and port C 

   1. Plug the port B.

      Courtesy of MAZDA MOTORS CORP.

   2. Apply a pressure of 1.8 kPa {14 mmHg, 0.53 inHg} to port A.
   3. Verify that there is airflow from port C.
      • If there is no airflow, replace the charcoal canister. (See CHARCOAL CANISTER REMOVAL/INSTALLATION ).

   Between port B and port C 

   1. Plug the port A.

      Courtesy of MAZDA MOTORS CORP.

   2. Apply a pressure of 2.0 kPa {15 mmHg, 0.59 inHg} to port C.
   3. Verify that there is airflow from port B.
      • If there is no airflow, replace the charcoal canister. (See CHARCOAL CANISTER REMOVAL/INSTALLATION ).