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Isuzu
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2006
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Ascender LS, 5.3 M, RWD
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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 P3449
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DTC P2123
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Conditions for Setting the DTC
Conditions for Setting the DTC
The APP sensor 1 voltage is more than 4.7 volts for more than 1 second.