Nissan Juke Service and Repair Manual : 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 adjusting the pressure to the diaphragm of the boost control actuator.
When driving conditions demand an increase in boost, the ECM prolongs the ON time of the turbocharger boost control solenoid valve and moves the boost control valve towards the closing direction by reducing the pressure in the diaphragm of the boost control actuator. The emission gas to the turbine wheel is then increased. When driving conditions demand a decrease in boost, the ECM shortens the ON time of the turbocharger boost control solenoid valve and moves the boost control valve towards the opening position by increasing the pressure in the diaphragm of the boost control actuator. The emission bypassing to the turbine wheel is then increased. Thus, by performing the most optimal boost control, the ECM improves engine output and response.
NOTE
:
The boost varies depending on the vehicle and driving conditions.
BOOST CONTROL ACTUATOR LINE DRAWING
1. Turbocharger
2. Boost control actuator
3. Turbocharger boost control solenoid
valve
4. Recirculation valve
5. Turbocharger boost sensor
(with intake air temperature sensor 2)
: Vehicle front
Exhaust valve timing control
Exhaust valve timing control : System Diagram Exhaust valve timing control: System Description INPUT/OUTPUT SIGNAL CHART SYSTEM DESCRIPTION This mechanism hydraulically controls cam phases c ...Engine protection control at low engine oil pressure
Engine protection control at low engine oil pressure : System Diagram Engine protection control at low engine oil pressure : System Description INPUT/OUTPUT SIGNAL CHART SYSTEM DESCRIPTION • ...Other materials:
Position switch
Removal and Installation
REMOVAL
1. Drain gear oil. Refer to TM-22, "Draining".
2. Disconnect position switch connector (A).
3. Remove position switch from transaxle case.
INSTALLATION
1. Apply recommended sealant to threads of position switch.
• Use Genuine Liquid Gasket, Three ...
P1551, P1552 battery current sensor
DTC Logic
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform
the following before conducting
the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. ...
Front drive shaft boot
Exploded View
1. Circular clip
2. Dust shield
3. Housing assembly
4. Boot band
5. Boot
6. Damper band
7. Dynamic damper
8. Circular clip
9. Joint sub-assembly
: Wheel side
: Fill NISSAN Genuine grease or
equivalent.
: Always replace after every
disassembly.
RIGHT SIDE
1. ...