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Chevrolet
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2006
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Impala SS
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System - 5.3L - DTC P0016 To DTC P0135
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DTC P0131
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Conditions for Setting the DTC
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Lean Test
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Lean Test
The ECM detects that the affected HO2S voltage parameter is less than 200 mV for 165 seconds.