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Home >> Infiniti >> 2013 >> M56 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Component Testing & Removal And Installation >> Low Pressure Fuel Pump >> Component Inspection (Low Pressure Fuel Pump)

Component Inspection (Low Pressure Fuel Pump)

  1. CHECK FUEL PRESSURE REGULATOR 
    1. Turn ignition switch OFF.
    2. Check low fuel pressure. Refer to "WORK PROCEDURE ".

      Is inspection result normal? 

      YES: INSPECTION END

      NO: GO TO 2.

  2. CHECK LOW PRESSURE FUEL PUMP 
    1. Turn ignition switch OFF.
    2. Disconnect fuel level sensor unit and fuel pump (main).
    3. Check resistance between fuel level sensor unit and fuel pump (main) terminals as follows.
      + - Condition Resistance
      Fuel level sensor unit and fuel pump (main)
      Terminals
      1 3 Temperature: 25°C (77°F) 0.2 - 5.0 Ω

      Is the inspection result normal? 

      YES: INSPECTION END

      NO: Replace fuel level sensor unit and fuel pump (main). Refer to "EXPLODED VIEW ".