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Chevrolet
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2005
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Aveo Base, 4D Hatchback
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Repair and Diagnosis
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Engine Performance
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Testing & Diagnosis
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Engine Controls - 1.6L (L91) - DTC P0201 To DTC P0455
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Diagnosis
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DTC P0442
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Conditions for Setting the DTC
Conditions for Setting the DTC
The EVAP system can achieve vacuum but a vacuum decay is detected during the diagnostic test.