LEMON Manuals
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Infiniti
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2016
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Q50 Base, RWD
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Repair and Diagnosis (Single Page)
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Engine Performance
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System
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Engine Control System (DTCS) (Except Hybrid) (2 Of 5)
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DTC/Circuit Diagnosis
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DTC P0140: O2 Sensor
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DTC Description
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Possible Cause
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Possible Cause
Harness and connectors
(O2 sensor circuit is open or shorted.)
O2 sensor