Operation Principle

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Engine Condition	Not Running	Idling or Decelerating	Normal Operation	Accelerating and High Load
Vacuum in Intake Manifold	0	High	Mode rate	Low
PCV Valve	Close	Slightly Open	Property Open	Fully Open
Blow-by Gas Flow	0	Small	Medium	Large
Schematic Diagram	Intake Manifold Courtesy of KIA MOTORS AMERICA, INC.	Intake Manifold Courtesy of KIA MOTORS AMERICA, INC.	Intake Manifold Courtesy of KIA MOTORS AMERICA, INC.	Intake Manifold Courtesy of KIA MOTORS AMERICA, INC.