PCV Valve Inspection

WARNING: This page is about a different car, the 2005 Mazda MX-5 Miata. However, it is still accessible from the selected car via links, so may be relevant.

Remove the PCV valve.
Blow through the valve and verify that air flows as specified.
- If not as specified, replace the PCV valve.
  
  Fig 1: Identifying PCV Valve Port
  Courtesy of MAZDA MOTORS CORP.