Nissan Sentra B18 (2020-2025) Service Manual: Structure and Operation
Positive Crankcase Ventilation
Structure and Operation
Structure and Operation
This system returns blow-by gas to the intake manifold.The positive crankcase ventilation (PCV) valve is provided to conduct crankcase blow-by gas to the intakemanifold.
During partial throttle operation of the engine, the intake manifold sucks the blow-by gas through the PCV valve.
Normally, the capacity of the valve is sufficient to handle any blow-by and a small amount of ventilating air.The ventilating air is drawn from the air inlet tubes into the crankcase. In this process the air passes throughthe hose connecting air inlet tubes to rocker cover. Under full-throttle condition, the manifold vacuum is insufficient to draw the blow-by flow through the valve.The flow goes through the hose connection in the reverse direction.
Other materials:
Engine Does Not Start When Intelligent Key Is Inside of Vehicle (one Key)
Diagnosis Procedure
Diagnosis Procedure
DESCRIPTION
Engine does not start when push-button ignition
switch is pressed. (One Intelligent Key has the symptom, other keys
operate normally.)
SYMPTOM TABLE (ONE INTELLIGENT KEY HAS THE
SYMPTOM, OTHER KEYS OPERATE NORMALLY)
...
P0117 Ect Sensor
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
condition
...
Uniform tire quality grading
DOT (Department of Transportation) Quality Grades apply to all passenger car
tires and are intended to provide comparative information in addition to meeting
federal safety requirements.
Where applicable, these quality grades are molded into the tire sidewall between
the tread shoulder and th ...