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Chevrolet
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2005
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Venture Base, Van Cargo Extended
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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 - 3.4L DTC P0446 To P1640
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DTC Tests
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DTC P0455
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Conditions For Setting the DTC
Conditions For Setting the DTC
The EVAP system is not able to achieve or maintain vacuum during the diagnostic test.