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pressure difference between the inlet and the outlet of the canister control valve. The canister control valve will be closed when there is not any electric pulse.
12.4 Installation attentions See above installation drawing for connection among canister control valve, carbon canister and intake manifold. on the hose is recommended. l During installation, make sure that the airflow direction meets the specification. material as particles from entry into the canister control valve from carbon canister or hose. It is recommended that a corresponding protective strainer (size of grid < 50 µ m) should be installed on outlet of carbon canister. 12.5. Failure effects and judgment method Reasons for general failure: corrosion or poor sealing performance etc. due to entry of foreign material into inside of the valve. 1. During installation, make sure that the airflow direction meets the specification; 2. In case of control valve failure due to black particle inside the valve body, when replacement of the control valve is required, check the status of the canister; 3. During maintenance, try to avoid entry of such liquid as water and oil etc. into the valve; 4. In order to avoid transfer of solid borne noise, floating installation of the canister control valve on the hose is recommended. 87# pin of main relay Canister control valve 1 From fuel tank 2 Canister 3 Atmosphere 4 Canister control valve 5 To intake manifold 6 Throttle Cross-section view of canister control valve Installation drawing of canister control valve ΔP is the difference between environmental pressure |