DTC P0262, P0265, P0268 Or P0271: Fuel Injector Circuit High Input

1998 Subaru Forester S, AutomaticSECTION DTC P0262, P0265, P0268 Or P0271: Fuel Injector Circuit High Input
  1. Turn ignition on. Using voltmeter connected to ground, backprobe PCM connector terminals No. 96 (cyl. No. 1), No. 70 (cyl. No, 2), No. 44 (cyl. No. 3) and No. 16 (cyl. No. 4). See INJECTOR PCM TERMINAL IDENTIFICATIONΒ  table. See appropriate wiring diagram in WIRING DIAGRAMS article in this section. If voltage is more than 10 volts on any injector circuit, go to next step. If voltage is 10 volts or less on any injector circuit, check PCM connector for poor contact. If PCM connection is okay, replace PCM.
  2. Turn ignition off. Disconnect affected fuel injector connector. Turn ignition on. Using voltmeter connected to ground, backprobe terminal of affected injector at PCM connector. See INJECTOR PCM TERMINAL IDENTIFICATIONΒ  table. If voltage is 10 volts or less, go to next step. If voltage is more than 10 volts, check for short in harness between affected injector connector terminal No. 1 and PCM. After repairing short, check PCM operation and replace if necessary.
  3. Measure resistance of affected injector(s) between terminals No. 1 and 2. If resistance is not 5-20 ohms, replace injector. If resistance is 5-20 ohms, check PCM connector for poor contact. If PCM connection is okay, replace PCM.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.