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Chevrolet
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2004
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Optra Base, Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - 2.0L (L34 GMDAT) - DTC P0496 To DTC P2422
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DTC P2196
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Conditions for Setting the DTC
Conditions for Setting the DTC
The ECM detects that the HO2S 1 voltage is more than 550 mV for 11 seconds during DFCO mode.