Nissan Juke Service and Repair Manual : Fuel pressure control
Fuel pressure control : System Diagram
Fuel pressure controlL : System Description
INPUT/OUTPUT SIGNAL CHART
*: ECM determines the start signal status by the engine speed signal and battery voltage.
CVT models
System Description
Low fuel pressure control • The low fuel pressure pump is controlled by ECM. The pumped fuel passes through the fuel filter and is sent to the high pressure fuel pump.
• Low fuel pressure is adjusted by the fuel pressure regulator.
High fuel pressure control The high pressure fuel pump raises the pressure of the fuel sent from the low pressure fuel pump. Actuated by the camshaft, the high pressure fuel pump activates the high pressure fuel pump solenoid based on a signal received from ECM, and adjusts the amount of discharge by changing the timing of closing the inlet check valve to control fuel rail pressure.
M/T models
System Description
Low fuel pressure control • The low fuel pressure pump is controlled by the fuel pump control module (FPCM) and pumps fuel according to a driving condition. The pumped fuel passes through the fuel filter and is sent to the high pressure fuel pump. FPCM controls the low pressure fuel pump, according to a signal from ECM as shown in the table below.
• Low fuel pressure is adjusted by the fuel pressure regulator.
High fuel pressure control The high pressure fuel pump raises the pressure of the fuel sent from the low pressure fuel pump. Actuated by the camshaft, the high pressure fuel pump activates the high pressure fuel pump solenoid based on a signal received from ECM, and adjusts the amount of discharge by changing the timing of closing the inlet check valve to control fuel rail pressure
Direct injection gasoline system
Direct injection gasoline system : System Diagram
Direct injection gasoline system : System Description
INPUT/OUTPUT SIGNAL CHART
*1: This sensor is not used to control the engine system under ...
Electric ignition system
Electric ignition system : System Diagram
Electric ignition system : System Description
INPUT/OUTPUT SIGNAL CHART
*1: CVT models
*2: M/T models
*3: ECM determines the start signa ...
Other materials:
Keys
A key number plate is supplied with your keys.
Record the key number and keep it in a safe place (such as your wallet), not
in the vehicle. If you lose your keys, see a NISSAN dealer for duplicates by using
the key number. NISSAN does not record any key numbers so it is very important to
keep ...
Three-point type seat belt
WARNING
• Every person who drives or rides in this vehicle should use a seat belt
at all times.
• Do not ride in a moving vehicle when the seatback is reclined. This can be dangerous.
The shoulder belt will not be against your body. In an accident, you could be thrown
into it and receive nec ...
Power supply and ground circuit
Navi control unit
NAVI CONTROL UNIT : Diagnosis Procedure
1.CHECK FUSE
Check for blown fuses.
Is inspection result OK?
YES >> GO TO 2.
NO >> Be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK POWER SUPPLY CIRCUIT
Check voltage between NAVI control ...
