Throttled PCV system for an engine

A vehicle comprising:

• an internal combustion engine having an intake manifold and a crankcase;
• a forced air induction system having an air supply duct fluidly coupled to the intake manifold;
• a positive crankcase ventilation (PCV) system comprising:
• a PCV line fluidly coupled between the crankcase and air supply duct and configured to vent blow-by gases from the crankcase to the air supply duct;
• a make-up air (MUA) line fluidly coupled between the crankcase and the air supply duct;
• and
• an inlet valve disposed in the forced air induction system, the inlet valve configured to selectively move between an open position and a closed position to vary an air restriction in the forced air induction system and generate a vacuum, wherein the generated vacuum is configured to draw the blow-by gases from the crankcase through the PCV line and into the air induction system when the engine is under either naturally aspirated or boosted conditions, thereby facilitating preventing a reverse flow of the blow-by gases in the MUA line and eliminating a need for an oil separator in the MUA line;
• and
• a throttle valve fluidly coupled to the intake manifold and configured to selectively restrict the amount of air introduced to the internal combustion engine.