Pressure Control Valve Inspection

U.S.A. and CANADA specs. 

1. Remove the pressure control valve.
   CAUTION:

   • Do not apply a pressure 36 kPa {0.37 kgf/cm2, 5.2 psi} or more. Doing so will damage the pressure control valve and evaporative hose.
2. Apply a pressure of 36 kPa {0.37 kgf/cm2, 5.2 psi} to port A.

   2WD 

   Fig 1: Applying Pressure Of 36 KPA (0.37 KGF/CM2, 5.2 PSI) To Port A (2WD)

   Courtesy of MAZDA MOTORS CORP.

   AWD 

   Fig 2: Applying Pressure Of 36 KPA (0.37 KGF/CM2, 5.2 PSI) To Port A (AWD)

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