Nissan Murano: Symptom Diagnosis / Normal Operating Condition

Nissan Murano (Z52) 2015-2024 Service Manual / Engine / Engine Control System :: Vq35de / Symptom Diagnosis / Normal Operating Condition

Description

FUEL CUT CONTROL (AT NO LOAD AND HIGH ENGINE SPEED)

If the engine speed is above 2,000 rpm under no load (for example, the selector lever position is P or N and engine speed is over 2,000 rpm) fuel will be cut off after some time. The exact time when the fuel is cut off varies based on engine speed.

Fuel cut will be operated until the engine speed reaches 1,100 rpm, then fuel cut will be cancelled.

NOTE:

This function is different from deceleration control listed under Multiport Fuel Injection (MFI) System, System Description.

    Engine Control System Symptoms

    Symptom Table SYSTEM — BASIC ENGINE CONTROL SYSTEM  SYMPTOM Reference page HARD/NO START/RESTART (EXCP. HA) ENGINE STALL HESITATION/SURGING/FLAT SPOT SPARK KNOCK/DETONATION LACK OF POWER/POOR ACCELERATION HIGH IDLE/LOW IDLE ROUGH IDLE/HUNTING IDLING VIBRATION SLOW/NO RETURN TO IDLE OVERHEATS/WATER TEMPERATURE HIGH EXCESSIVE FUEL CONSUMPTION EXCESSIVE OIL CONSUMPTION BATTERY DEAD (UNDER CHARGE) Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA Fuel Fuel pump circuit 1 1 2 3 2   2 2     3   2 Diagnosis Procedure Fuel pressure regulator system 3 3 4 4 4 4 4 4 4   4     Work Procedure Fuel injector circuit 1 1 2 3 2   2 2     2     Component Function Check Evaporative emission system 3 3 4 4 4 4 4 4 4   4     System Description Air Positive crankcase ventilation system 3 3 4 4 4 4 4 4 4   4 1   Positive Crankcase Ventilation (PCV) Incorrect idle speed adjustment       1 1 1 1   1     Work Procedure Electric throttle control actuator 1 1 2 3 3 2 2 2 2   2   2 DTC Description, DTC Description Ignition Incorrect ignition timing adjustment 3 3 1 1 1   1 1     1     Work Procedure Ignition circuit 1 1 2 2 2   2 2     2     Component Function Check Power supply and ground circuit 2 2 3 3 3   3 3   2 3   Diagnosis Procedure Mass air flow sensor circuit 1 1 2 2 2   2 2     2     DTC Description, DTC Description Engine coolant temperature sensor circuit 3 3 3       DTC Description, DTC Description Air fuel ratio (A/F) sensor 1 circuit             DTC Description, DTC Description, DTC Description, DTC Description, DTC Description Throttle position sensor circuit     2 2       DTC Description, DTC Description, DTC Description, DTC Description, DTC Description Accelerator pedal position sensor circuit     3 2 1             DTC Description, DTC Description, DTC Description, DTC Description Knock sensor circuit     2               3     DTC Description Engine oil temperature sensor 4 2       3     DTC Description, DTC Description Crankshaft position sensor (POS) circuit 2 2           DTC Description Camshaft position sensor (PHASE) circuit 3 2           DTC Description Nissan Murano Vehicle speed signal circuit   2 3   3           3     DTC Description ECM 2 2 3 3 3 3 3 3 3 3 3     DTC Description, DTC Description Intake valve timing control solenoid valve circuit   3 2   1 3 2 2 3   3     DTC Description Intake valve timing intermediate lock control solenoid valve circuit DTC Description Exhaust valve timing control solenoid valve 3 2   1 3 2 2 3   3 DTC Description PNP signal circuit     3   3   3 3     3     DTC Description VIAS control solenoid valve 1 circuit 1 DTC Description VIAS control solenoid valve 2 circuit 1 DTC Description Refrigerant pressure sensor circuit   2   3 3   4     Component Function Check Electrical load signal circuit             3           Component Function Check Air conditioner circuit 2 2 3 3 3 3 3 3 3   3   2 Work Flow ABS actuator and electric unit (control unit) 4 Work Flow 1 - 6: The numbers refer to the order of inspection...

    Periodic Maintenance

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    Other information:

    Nissan Murano (Z52) 2015-2024 Service Manual: Engine Protection Control at Low Engine Oil Pressure


    System Description SYSTEM DIAGRAMSYSTEM DESCRIPTION The engine protection control at low engine oil pressure warns the driver of a decrease in engine oil pressure by the oil pressure warning lamp before the engine becomes damaged. When detecting a decrease in engine oil pressure at an engine speed less than 1,000 rpm, ECM transmits an oil pressure warning lamp signal to the combination meter...

    Nissan Murano (Z52) 2015-2024 Service Manual: B2560 Starter Cont Relay


    DTC Description Starter control relay, integrated in IPDM E/R, permits the starter relay operation when in N (Neutral) or P (Park) position.DTC DETECTION LOGICNOTE: If DTC B2560 is displayed with DTC U1000, first perform the trouble diagnosis for DTC U1000...

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