Installation is reverse of removal.
PCV valve installation [1.6 MPI]:
1.8 ~ 2.8 N.m (0.18 ~ 0.29 kgf.m, 1.3 ~ 2.1 lb-ft)
PCV valve installation [1.6 GDI]:
7.8 ~ 11.8 N.m (0.8 ~ 1.2 kgf.m, 5.8 ~ 8.7 lb-ft)