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Home >> Subaru >> 1993 >> Legacy Sport >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes >> Diagnostic Code Testing >> Codes 14, 15, 16 & 17: Fuel Injector
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Codes 14, 15, 16 & 17: Fuel Injector

NOTE: Refer to illustration for ECU connector and terminal identification. See Figure .
  1. Crank engine and ensure each fuel injector makes an operating sound. If fuel injectors make an operating sound, check fuel pressure. See BASIC TESTING article. If fuel injectors do not make an operating sound, go to next step.
  2. Turn ignition off. Disconnect connector from each injector. Turn ignition on. Measure voltage between each injector connector power supply terminal and ground. If voltage is not at least 10 volts, repair or replace harness or connector. If voltage is at least 10 volts, check resistance between fuel injector terminals. If resistance is not 11-12 ohms, replace fuel injector(s). If resistance is 11-12 ohms, go to next step.
  3. Disconnect ECU connector. Ensure fuel injectors are connected. Measure voltage between ECU connector F47, terminals No. 11, 12, 13, 26, and ground. If 10 volts are present, repair ECU connector or replace ECU as necessary. If 10 volts are not present, go to next step.
  4. Zero ohms should be present between ECU connector F47, terminals No. 24, 25, and ground. If zero ohms are not present, repair harness or replace ECU.
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