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Home >> Nissan-Datsun >> 2023 >> Sentra S >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (2 Of 2) >> Component/Circuit Diagnosis >> High Pressure Fuel Pump >> Component Function Check
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Component Function Check

  1. CHECK HIGH PRESSURE FUEL PUMP FUNCTION 
    1. SYMBOL With CONSULT:
      1. Start engine.
      2. Select "FUEL PRES SEN V" in "DATA MONITOR" mode of "ENGINE" using CONSULT and check the indication as per the following conditions.
        Monitor item Condition Indication
        FUEL PRES SEN V At idle 0.820 - 1, 140 V
        Revving engine up to 4, 000 RPM quickly. 0.820 - 2, 900 V
    2. SYMBOL Without CONSULT
      1. Start engine.
      2. Check the voltage between ECM terminals as per the following conditions.
        ECM Condition Voltage
        Connector + -
        Terminal
        F25 67 68 [Engine is running]
        • Warm-up condition
        • Idle speed
          NOTE: SYMBOL The pulse cycle changes depending on RPM at idle.
        GNSDB47579Courtesy of NISSAN
        [Engine is running]
        • Warm-up condition
        • Engine speed: 2, 000 RPM
        GNSDB47596Courtesy of NISSAN

    Is the inspection result normal?

    YES>>

    INSPECTION END

    NO>>

    Refer to Diagnosis Procedure .