CHARCOAL CANISTER, CANISTER VENT (CV) SOLENOID VALVE, AIR FILTER COMPONENT INSPECTION [MZI-3.7]

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Airflow Inspection

1. Disconnect the negative battery cable. (See BATTERY REMOVAL/INSTALLATION [MZI-3.7].)

2. Remove the charcoal canister, CV solenoid valve, air filter component. (See CHARCOAL CANISTER, CANISTER VENT (CV) SOLENOID VALVE, AIR FILTER COMPONENT REMOVAL/INSTALLATION [MZI-3.7].)

3. Plug the purge solenoid valve side of the charcoal canister.

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4. Pressurizing from the fuel tank side of the charcoal canister, verify that there is no leak from the charcoal canister and that the CV solenoid valve is closed.

  • If malfunction, replace the charcoal canister, CV solenoid valve, air filter component. (See CHARCOAL CANISTER, CANISTER VENT (CV) SOLENOID VALVE, AIR FILTER COMPONENT REMOVAL/INSTALLATION [MZI-3.7].)

5. Connect the battery positive voltage to CV solenoid valve terminal A.

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6. Pressurizing from the fuel tank side of the charcoal canister, verify that the CV solenoid valve is open and that there is airflow through the air filter.

  • If malfunction, replace the charcoal canister, CV solenoid valve, air filter component. (See CHARCOAL CANISTER, CANISTER VENT (CV) SOLENOID VALVE, AIR FILTER COMPONENT REMOVAL/INSTALLATION [MZI-3.7].)

7. Pressurizing from the air filter side, verify that the CV solenoid valve is open and that there is airflow through the air filter.

  • If malfunction, replace the charcoal canister, CV solenoid valve, air filter component. (See CHARCOAL CANISTER, CANISTER VENT (CV) SOLENOID VALVE, AIR FILTER COMPONENT REMOVAL/INSTALLATION [MZI-3.7].)