Integra L4-1678cc 1.7L DOHC (VTEC) FI (1992)
Positive Crankcase Ventilation: Description and Operation
PCV System Description
The Positive Crankcase Ventilation (PCV) system is designed to prevent blow-by gas from escaping to the atmosphere. The PCV valve contains a
spring-loaded plunger. When the engine starts, the plunger in the PCV valve is lifted in proportion to intake manifold vacuum and the blow-by gas
is drawn directly into the intake manifold.