Paseo L4-1497cc 1.5L DOHC (5E-FE) (1992)
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Positive Crankcase Ventilation: Description and Operation
PCV System
PURPOSE
The PCV valve is used to to reduce HC emissions by directing crankcase blow-by back into the intake manifold for combustion.
PCV Operation
OPERATION
The PCV valve contains a spring loaded valve that allows the amount of blow-by reintroduced into the intake manifold to be controlled. The valve
passage size is dependent upon intake manifold vacuum and crankcase pressure.