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:
Intake manifold
Exploded View
1. EVAP canister purge volume control
solenoid valve
2. Hose clamp
3. Vacuum hose
4. Intake manifold support
5. Gasket
6. Intake manifold
7. Electric throttle control actuator
8. Gasket
A. To air cleaner
B. To centralized under-floor piping
C. To brake booster
D. ...
Push-button ignition switch position indicator does not illuminate
Description
• Before performing the diagnosis in the following table, check “Work Flow”.
Refer to PCS-88, "Work Flow".
• Check that vehicle is under the condition shown in “Conditions of vehicle”
before starting diagnosis, and
check each symptom.
Conditions of Vehicle (Operating ...
P0712 transmission fluid temperature sensor A
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition
switch OFF and wait for at
least 10 seconds, then perform the next test.
>> GO TO 2.
2.PERFORM DTC CONFIRMATION ...