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Fuel Level Sensor: Inspection

  1. Check that the fuel level sensor has no damage.
  2. Measure the fuel level sensor float position.
    NOTE: When inspecting the fuel level sensor, perform the work with the sensor installed to the fuel pump.
    G13875650Courtesy of SUBARU OF AMERICA, INC.
    • Impreza model
      Float position Standard
      FULL - Fuel tank seating surface H1 198.9±3.5 mm (7.831±0.138 in)
      EMPTY - Fuel tank seating surface H2 23.2±3.5 mm (0.913±0.138 in)
    • Crosstrek model
      Float position Standard
      FULL - Fuel tank seating surface H1 190.7±3.5 mm (7.508±0.138 in)
      EMPTY - Fuel tank seating surface H2 24.6±3.5 mm (0.969±0.138 in)
  3. Check the resistance between fuel level sensor terminals by the connector on top of the fuel pump.
    G11252962Courtesy of SUBARU OF AMERICA, INC.
    • Impreza model
      Float position Terminal No. Standard
      FULL(A) 1 and 4 17.4±2.0 Ω
      EMPTY (B) 410.0±4.5 Ω
    • Crosstrek model
      Float position Terminal No. Standard
      FULL(A) 1 and 4 8.7±1.0 Ω
      EMPTY (B) 233.4±2.5 Ω
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