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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 P1682 To DTC P3401
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DTC P2128
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Conditions for Setting the DTC
Conditions for Setting the DTC
The ECM detects that the APP sensor 2 voltage is more than 4.2 volts for more than one second.