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Chevrolet
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2005
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Uplander LS
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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 - 3.5L - DTC P0446 - P1404
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DTC Tests
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DTC P0453
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Conditions for Setting the DTC
Conditions for Setting the DTC
The FTP sensor voltage is more than 4.9 volts for more than 5 seconds.