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Home >> Subaru >> 2019 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Fuel Injection System (Except For STI) >> Fuel Injector Relay >> Inspection
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Fuel Injector Relay: Inspection

  1. Check that the fuel injector relay has no deformation, cracks or other damages.
  2. Measure the resistance between fuel injector relay terminals.
    G08315468Courtesy of SUBARU OF AMERICA, INC.
    Terminal No. Standard
    1 and 2 1 MΩ or more
    3 and 4 93.8 - 136.4 Ω (when 20°C (68°F))
  3. Connect battery positive terminal to terminal No. 3 and battery ground terminal to terminal No. 4, and measure the resistance between the fuel injector relay terminals.
    G08315469Courtesy of SUBARU OF AMERICA, INC.
    Terminal No. Standard
    1 and 2 Less than 1 Ω