Canister Purge Control Valve: Testing and Inspection

1. Remove the pressure control valve.
2. Attach an air hose to the SST.




3. Set the SST to port A and plug port B as shown in the figure.

4. Verify that there is airflow from port D when pressure of +0.99 kPa {+7.4 mmHg, +0.29 inHg} is applied to port A.
- If there is no airflow, replace the pressure control valve.




5. Set the SST to port B and C. Plug port A as shown in the figure.
6. Verify that there is airflow from port 0 when pressure of +0.99 kPa {+7.4 mmHg, +0.29 inHg} is applied to port B and C.
- If there is no airflow, replace the pressure control valve.




7. Set the SST to port A and C. Plug port B as shown in the figure.
8. Verify that there is no airflow from port D when pressure of +0.99 kPa {+7.4 mm Hg, +0.29 inHg}is applied to port A and C.
- If there is airflow, replace the pressure control valve.




9. Set the SST to port D and plug port B.
10. Verify that there is airflow from port A when pressure of +0.99 kPa {+7.4 mmHg, +0.29 inHg} is applied to port D.
- If there is no airflow, replace the pressure control valve.