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:
Moonroof (if so equipped)
WARNING
• In an accident you could be thrown from the vehicle through an open moonroof.
Always use seat belts and child restraints.
• Do not allow anyone to stand up or extend any portion of their body out of the
moonroof opening while the vehicle is in motion or while the moonroof is closing. ...
Side oil seal
Removal and Installation
REMOVAL
1. Remove front drive shafts. (MR16DDT) Refer to FAX-22, "LEFT SIDE : Removal
and Installation" (LEFT
SIDE) and FAX-24, "RIGHT SIDE : Removal and Installation" (RIGHT SIDE).
2. Remove front drive shafts. (K9K) Refer to FAX-78, "LEFT SID ...
RearView monitor (if so equipped)
When the shift lever is shifted into the R (Reverse) position, the monitor display
shows the view to the rear of the vehicle.
The system is designed as an aid to the driver in situations such as slot parking
or parallel parking.
WARNING
Failure to follow the warnings and instructions for prop ...