Nissan Juke Service and Repair Manual : P0089 fuel pump

DTC Logic

DTC DETECTION LOGIC

NOTE:


NOTE

:
• Conditions for applying the diagnostic procedure to the stored DTCs: The DTC becomes present during the first 30 seconds after the engine starts.

• In low ambient temperature conditions, diagnostic cannot make difference between a normal long engine start and abnormal long engine start. So, DTC must be take in account only if customer complains about too long or impossible engine start not only in cold conditions but also and especially in warm conditions. If customer complains only in cold conditions, root cause of the problem could elsewhere like low battery level, bad fuel specification (too viscous fuel). This DTC could appear after fuel filter too.

• Special notes:
Starting and engine operation difficult or impossible.

Diagnosis Procedure

1.CHECK LOW PRESSURE FUEL SUPPLY SYSTEM

Refer to EC-867, "Work Procedure (TEST 1: Low Pressure Fuel Supply System Check)".

Is the inspection result normal? OK >> GO TO 2.

NG >> Repair or replace.

2.CHECK INTERNAL FUEL TRANSFER PUMP

Refer to EC-868, "Work Procedure (TEST 2: Internal Fuel Transfer Pump Check)".

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

NG >> Repair or replace.

3.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE)

Refer to EC-868, "Work Procedure [TEST 3: High Pressure Supply Pump (Pressure Control Valve) Check]".

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

NG >> Repair or replace.

4.CHECK HIGH PRESSURE SUPPLY PUMP (VOLUMETRIC CONTROL VALVE)

Refer to EC-869, "Work Procedure [TEST 4: High Pressure Supply Pump (Volumetric Control Valve) Check]".

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

NG >> Repair or replace.

5.CHECK RAIL HIGH PRESSURE REGULATION

Refer to EC-871, "Work Procedure (TEST 5: Rail High Pressure Regulation Check)".

Is the inspection result normal? OK >> GO TO 6.

NG >> Repair or replace.

6.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident", ???INCIDENT SIMULATION TESTS??? and ???GROUND INSPECTION???.

Is the inspection result normal? YES >> INSPECTIO END.

NO >> Repair or replace.

    P0087 fuel pump
    DTC Logic DTC DETECTION LOGIC NOTE: • Conditions for applying the diagnostic procedure to the stored DTCs: The DTC becomes present during the first 30 seconds after the engine starts. • In low ...

    P0090 fuel pump
    DTC Logic DTC DETECTION LOGIC Diagnosis Procedure 1.CHECK HIGH PRESSURE SUPPLY PUMP (PRESSURE CONTROL VALVE) POWER SUPPLY 1. Turn ignition switch OFF. 2. Disconnect high pressure supply pump (p ...

    Other materials:

    Adjust
    For adjustable head restraint/headrest Adjust the head restraint/headrest so the center is level with the center of your ears. If your ear position is still higher than the recommended alignment, place the head restraint/headrest at the highest position. For non-adjustable head restraint/h ...

    Steering does not lock
    Description Steering does not lock when door is open while ignition switch is OFF. NOTE: Before performing the diagnosis, check “Work Flow”. Refer to SEC-47, "Work Flow". Diagnosis Procedure 1.CHECK DOOR SWITCH Check door switch. Refer to DLK-87, "Component Function Check ...

    Audio unit
    Removal and Installation REMOVAL 1. Remove cluster lid C. Refer to IP-12, "Exploded View". 2. Remove audio unit screws. 3. Disconnect audio unit connectors to remove audio unit and brackets as a single unit. 4. Remove brackets screws to remove audio unit. INSTALLATION 1. Install ...