For 1990-2009 cars

### Inspection Procedure

Caution: Do not breathe the air through the EVAP component tubes or hoses. The fuel vapors inside the EVAP components may cause personal injury.

1. Blow air into the cylinder head side of the PCV valve.
2. Check that air passes through the PCV valve easily.
3. Blow air into the intake manifold side of the PCV valve.
4. Check that air passes through the PCV valve with high resistances.
5. If the PCV valve fails either test, replace the PCV valve.