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Home >> Infiniti >> 2017 >> QX30 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Engine Control System (Introduction) >> System Description >> Structure And Operation >> Crankcase Ventilation System >> System Description >> Description
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System Description: Description

The crankcase ventilation system allows the discharging of excess pressure and excessive gas sent from the crankcase, feeding them back to the engine through the induction system, and combusting them under any engine operating condition.

GNSJSBIA9812ZZ-812Courtesy of NISSAN NORTH AMERICA, INC.
WHITE-1 Full-load operation vent line heater element WHITE-2 Fuel tank ventilation connector WHITE-3 Vent valve
WHITE-4 Oil separator WHITE-5 Partial load operation crankcase ventilation valve    
A Partial load bleed line B Vent line for oil separator C Purge line
D Wide open throttle bleed line E Engine ventilation line