Nissan Juke Service and Repair Manual : Structure and operation
Positive Crankcase Ventilation
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 intake manifold.
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 then drawn from the air inlet tubes into the crankcase. In this process the air passes through the 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.
On vehicles with an excessively high blow-by, the valve does not meet the requirement. This is because some of the flow will go through the hose connection to the air inlet tubes under all conditions.
Component parts
Engine control system : Component Parts Location 1. IPDM E/R Refer to PCS-5, "Component Parts Location". 2. Battery current sensor (with battery temperature sensor) 3. Mass air flow ...System
Engine control system : System Diagram Engine control system : System Description ECM performs various controls such as fuel injection control and ignition timing control. MULTIPORT FUEL INJE ...Other materials:
Vehicle security alarm does not activate
Description
Alarm does not operate when alarm operating condition is satisfied.
NOTE:
Check that vehicle is under the condition shown in “CONDITIONS OF VEHICLE
(OPERATING CONDITIONS)”
before starting diagnosis, and check each symptom.
CONDITION OF VEHICLE (OPERATING CONDITIONS)
“SECURITY ...
Turbocharger boost control
Turbocharger boost control : SystemDiagram
Turbocharger boost control : System Description
INPUT/OUTPUT SIGNAL CHART
SYSTEM DESCRIPTION
Depending on driving conditions, the ECM performs ON/OFF duty control of the
turbocharger boost control
solenoid valve and controls the boost by adjustin ...
Fuel level sensor unit, fuel filter and fuel pump assembly
Exploded View
1. Fuel tank
2. Rock ring
3.
Fuel level sensor unit, fuel filter and
fuel pump assembly
4. O-ring
: Vehicle front
: Always replace after every
disassembly.
: N·m (kg-m, ft-lb)
1. Fuel filter and fuel pump assembly
2. Fuel gauge
Removal and Installation
WARNING:
...