Air Injection Control Valve: Testing and Inspection

SECONDARY AIR INJECTION (AIR) CONTROL VALVE INSPECTION [13B-MSP]

1. Remove the secondary air injection control valve. Service and Repair

2. Verify that there is no air flow between A and B of the AIR control valve port.






- If there is air flow, replace the AIR control valve. Service and Repair

3. Install the vacuum pump to the AIR control valve.






4. Pressurize the actuator valve of the AIR control with a negative pressure of approx. 60 kPa {450 mmHg, 18 inHg}.

CAUTION:
- Since the valve actuator of the AIR control could be damaged, do not pressurize positive pressure or negative pressure more than 100 kPa {1.02 kgf/cm2, 14.5 psi}.

5. Blow air through port A, then verify that there is air flow.

- If there is no air flow, replace the AIR control valve.

6. Blow air from through port B, then verify that there is no air flow.

- If there is air flow, replace the AIR control valve. Service and Repair