LEMON Manuals
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Mitsubishi
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2001
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Eclipse GS, Automatic
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Repair and Diagnosis
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTC P0134: Front Heated Oxygen Sensor (Ho2S) Circuit No Activity Detected (Bank 1 Sensor 1)
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Probable Causes
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Probable Causes
Front HO2S (2.4L) or right front HO2S (3.0L) deteriorated.
Open circuit in front HO2S (2.4L) or right front HO2S (3.0L) output line or ground line.
Engine Control Module/Powertrain Control Module (ECM/PCM) failed.