WARNING: This page is about a different car, the 2011 Honda CR-V and 2010 Honda CR-V. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect the PCV hose.
Remove the PCV valve (A).
Fig 1: PCV Valve And Washer With Torque Specification
Install the parts in the reverse order of removal with a new washer (B).