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Home >> Subaru >> 2000 >> Outback Base, Standard >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> ENGINE CONTROLS - Self-Diagnostics >> Diagnostic Tests >> DTC P1134: Front Oxygen Sensor (O2S) Micro-Computer Problem - 2.2L & Legacy 2.5L M/T

DTC P1134: Front Oxygen Sensor (O2S) Micro-Computer Problem - 2.2L & Legacy 2.5L M/T

Turn ignition off. Connect scan tool. Turn ignition on and retrieve DTCs. If DTC P1134 is present, replace ECM.