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Mitsubishi
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2001
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Mirage ES, Standard
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - Self-Diagnostics
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Diagnostic Tests
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DTC P0134: Ho2S No Activity Detected (Sensor 1)
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Probable Causes
Probable Causes
Front HO2S deteriorated.
Open circuit in front HO2S output line or ground line.
Engine Control Module (ECM) failed.