Nissan Juke Service and Repair Manual : Fuel injector

Component Function Check

1.INSPECTION START

Turn ignition switch to START.

Is any cylinder ignited? YES >> GO TO 2.

NO >> Go to EC-778, "Diagnosis Procedure".

2.CHECK FUEL INJECTOR FUNCTION

1. Start engine.With CONSULT-III


1. Start engine.

2. Perform “POWER BALANCE” in “ACTIVE TEST” mode with CONSULT-III.

3. Make sure that each circuit produces a momentary engine speed drop.

1. Let engine idle.Without CONSULT-III


1. Let engine idle.

2. Listen to each fuel injector operating sound.

Clicking noise should be heard.

Is the inspection result normal? YES >> INSPECTION END

NO >> Go to EC-778, "Diagnosis Procedure".

Diagnosis Procedure


Diagnosis Procedure

1.CHECK FUEL INJECTOR POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect fuel injector harness connector.

3. Turn ignition switch ON.

4. Check the voltage between fuel injector harness connector and ground.

Is the inspection result normal?


Is the inspection result normal? YES >> GO TO 3.

NO >> GO TO 2.

2.DETECT MALFUNCTIONING PART

Check the following.

• Harness connectors E8, F1 • IPDM E/R connector E15 • 15 A fuse (No. 62)
• Harness for open or short between fuel injector and fuse

>> Repair open circuit or short to ground or short to power in harness or connectors.

3.CHECK FUEL INJECTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

1. Turn ignition switch OFF.

2. Disconnect ECM harness connector.

3. Check the continuity between fuel injector harness connector and ECM harness connector.

4. Also check harness for short to ground and short to power.


4. Also check harness for short to ground and short to power.

Is the inspection result normal? YES >> GO TO 4.

NO >> Repair open circuit or short to ground or short to power in harness or connectors.

4.CHECK FUEL INJECTOR

Refer to EC-779, "Component Inspection".

Is the inspection result normal? YES >> GO TO 5.

NO >> Replace malfunctioning fuel injector.

5.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

Is the inspection result normal? YES >> Replace IPDM E/R.

NO >> Repair or replace harness or connectors.

Component Inspection

1.CHECK FUEL INJECTOR

1. Turn ignition switch OFF.

2. Disconnect fuel injector harness connector.

3. Check resistance between fuel injector terminals as follows.

Is the inspection result normal?


Is the inspection result normal? YES >> INSPECTION END

NO >> Replace malfunctioning fuel injector.

    Electrical load signal
    Description The electrical load signal (Headlamp switch signal, rear window defogger switch signal, etc.) is transferred to ECM through the CAN communication line. Component Function Check 1.CHE ...

    Fuel pump
    Component Function Check 1.CHECK FUEL PUMP FUNCTION 1. Turn ignition switch ON. 2. Pinch fuel feed hose with two fingers. Fuel pressure pulsation should be felt on the fuel feed hose for 1 second ...

    Other materials:

    Blower fan resistor
    Exploded View 1. Heater unit assembly 2. Fan control amp.*1 3. Blower fan resistor*2 4. Blower motor 5. Blower motor cover • *1: Automatic air conditioner • *2: Manual air conditioner or Manual heater Removal and Installation REMOVAL 1. Remove instrument panel assembly. Refer to IP-13 ...

    Engine maintenance (MR16DDT)
    Drive belt DRIVE BELT : Exploded View 1. Alternator 2. Drive belt auto-tensioner 3. Crankshaft pulley 4. A/C compressor 5. Water pump 6. Drive belt A. Possible use range B. Range when new drive belt is installed C. Indicator DRIVE BELT : Checking WARNING: Perform this step when ...

    Using the system
    The NISSAN Voice Recognition system allows hands-free operation of the Bluetooth® Hands- Free Phone System. If the vehicle is in motion, some commands may not be available so full attention may be given to vehicle operation. Initialization When the ignition switch is placed in the ON position ...