Pressure Control Valve Inspection

U. S. A. and CANADA specs. 

1. Remove the pressure control valve.
   CAUTION:

   • Do not apply a pressure 0.3 kPa {0.003 kgf/cm² , 0.04 psi} or more. Doing so will damage the pressure control valve and evaporative hose.
2. Apply a pressure of 0.3 kPa {0.003 kgf/cm² , 0.04 psi} to port A.
   Fig 1: Identifying Pressure Control Valve

   Courtesy of MAZDA MOTORS CORP.
3. Verify that there is airflow from port B.
   • If there is no airflow, replace the pressure control valve.