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Home >> Infiniti >> 2019 >> Q60 Pure, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (DTC/Circuit Diagnosis) (2 Of 13) >> DTC/Circuit Diagnosis >> DTC P0087: FRP Control System >> Component Inspection (High Pressure Fuel Pump)
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Component Inspection (High Pressure Fuel Pump)

  1. CHECK HIGH PRESSURE FUEL PUMP-1 
    1. Turn ignition switch OFF.
    2. Disconnect high pressure fuel pump harness connector.
    3. Check the resistance between high pressure fuel pump terminals.

      +

      -

      Condition

      Resistance

      High pressure fuel pump

      Terminal

      1

      2

      Temperature deg.C (deg.F)

      20 - 30 (68 - 86)

      0.47 - 0.53 Ohm

    Is the inspection result normal?

    YES

    GO TO 2.

    NO

    Replace high pressure fuel pump. Refer to Removal and Installation .

  2. CHECK HIGH PRESSURE FUEL PUMP-2 

    SYMBOL WITH CONSULT

    1. Reconnect high pressure fuel pump harness connector.
    2. Start the engine.
    3. Check "FUEL PRES SEN V" in "DATA MONITOR" mode of "ECM" using CONSULT.

      Monitor item

      Condition

      Value

      FUEL PRES SEN V

      Engine speed: idle

      0.73 - 1.0 V

      Engine speed: Revving engine from idle to 4, 000 RPM quickly

      1.0 - 2.9 V

    SYMBOL WITHOUT CONSULT

    1. Reconnect high pressure fuel pump harness connector.
    2. Start the engine.
    3. Check FRP sensor signal voltage.

    ECM

    Condition

    Value

    Connector

    +

    -

    Terminal

    F143

    10

    9

    Engine speed: idle

    0.73 - 1.0 V

    Engine speed: Revving engine from idle to 4, 000 RPM quickly

    1.0 - 2.9 V

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace high pressure fuel pump. Refer to Removal and Installation .