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Home >> Infiniti >> 2013 >> M56 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0183 >> DTC P0088: FRP Control System >> Component Inspection (High Pressure Fuel Pump)

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 (Approx.)
      High pressure fuel pump
      Terminal
      1 2 Temperature °C (°F) 20 - 30 (68 - 86) 9 - 11 Ω

      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 

    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 (Approx.)
      FUEL PRES SEN V Engine speed: idle 820 - 1, 220 mV
      Engine speed: Revving engine from idle to 4, 000 rpm quickly 820 - 3, 060 mV

    WITHOUT CONSULT

    1. Reconnect high pressure fuel pump harness connector.
    2. Start the engine.
    3. Check FRP sensor signal voltage.
      ECM Condition Value (Approx.)
      Connector + -
      Terminal
      F110 31 40 Engine speed: idle 0.82 - 1.22 V
      Engine speed: Revving engine from idle to 4, 000 rpm quickly 0.82 - 3.06 V

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace high pressure fuel pump. Refer to "REMOVAL AND INSTALLATION ".