Purge Valve

Disconnect purge valve from oil filler pipe. See Fig 1 . Start engine and run at idle. Place finger over opening. Ensure vacuum is not present. Increase engine speed to 2000 RPM. Ensure vacuum is created at port. If no vacuum is created, replace purge valve.

Fig 1: Testing Purge Valve (Non-Turbo Purge Valve Shown. Turbo Purge Valve Similar)

Courtesy of MAZDA MOTORS CORP.