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Hummer
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2006
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H3 Automatic
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Repair and Diagnosis
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Engine Performance
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System
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Engine Controls - 3.5L - DTC P0496 To DTC P2125
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DTC P0496
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Conditions for Setting the DTC
Conditions for Setting the DTC
A continuous open purge flow condition is detected during the diagnostic test.
The fuel tank pressure decreases to less than -11 inches H2O for up to 65 seconds.