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Home >> Subaru >> 2013 >> BRZ Limited, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> Engine Control Systems >> Fuel Injection System >> Fuel sender gauge assembly (FA20) >> Unit inspection
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Unit inspection

  1. Fuel sender gauge assembly check (fuel sender gauge main)
    1. Visual inspection
      1. Check the fuel sender gauge assembly for damage.
      2. Check the dimensions between the float and fuel tank seating surface when the float is at F (upper limit) and E (lower limit).
      DIMENSION

      Float position F (upper limit) - fuel tank seating surface 121 to 129 mm {4.76 to 5.08 in}
      Float position E (lower limit) - fuel tank seating surface 14.7 to 22.7 mm {0.579 to 0.894 in}
      Fig 1: Identifying Dimensions Between Float And Fuel Tank Seating Surface (When Float At F And E Position)
      G08552664Courtesy of SUBARU OF AMERICA, INC.
    2. Resistance check
      WARNING: Be careful of fire.
      1. Check that the float moves smoothly between the positions F (upper limit) and E (lower limit).
      2. Check the resistance between the connector terminals when the float is at F (upper limit) and E (lower limit). Also check that the resistance varies continuously.
      RESISTANCE

      Inspection terminals Inspection conditions Standard value
      1 - 2 Float position F (upper limit) 6.5 to 8.5 Ω
      Float position E (lower limit) 168 to 172 Ω
      Fig 2: Checking Resistance Between Connector Terminals When Float At F (Upper Limit) And E (Lower Limit)
      G08552665Courtesy of SUBARU OF AMERICA, INC.
  2. Fuel sender gauge assembly NO. 2 check (fuel sender gauge sub)
    1. Visual inspection
      1. Check the fuel sender gauge assembly NO. 2 for damage.
      2. Check the dimensions between the float and fuel tank seating surface when the float is at F (upper limit) and E (lower limit).
      DIMENSION

      Float position F (upper limit) - fuel tank seating surface 150.3 to 158.3 mm {5.92 to 6.23 in}
      Float position E (lower limit) - fuel tank seating surface 0.7 to 8.7 mm {0.03 to 0.34 in}
      Fig 3: Identifying Dimensions Between Float And Fuel Tank Seating Surface (When Float At F And E Position)
      G08552666Courtesy of SUBARU OF AMERICA, INC.
    2. Resistance check
      WARNING: Be careful of fire.
      1. Check that the float moves smoothly between the positions F (upper limit) and E (lower limit).
      2. Check the resistance between the connector terminals when the float is at F (upper limit) and E (lower limit). Also check that the resistance varies continuously.
      RESISTANCE

      Inspection terminals Inspection conditions Standard value
      1 - 2 Float position F (upper limit) 5.5 to 9.5 Ω
      Float position E (lower limit) 236 to 244 Ω
      Fig 4: Checking Resistance Between Connector Terminals When Float At F (Upper Limit) And E (Lower Limit)
      G08552667Courtesy of SUBARU OF AMERICA, INC.
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