Author: Jonathan Swain (aka "PurdueGuy")
This guide is for the DOHC engine with aluminum valve cover, found on most (but not all) 1991-1995 SC/SC2/SL2/SW2 models. However, it’s very similar on other models, and even on the SOHC engine.
PCV = positive crankcase ventilation. This valve lets air escape from the valvetrain area and into the intake. A clogged/bad PCV contributes to valve cover leakage, so replace it if it does not rattle when you remove & shake it.
Twist & pull to remove from the elbow connector.
Installation is the reverse of removal.