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Home >> Chevrolet >> 2006 >> HHR LS, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - 2.2L - DTC P0449 To P1516 >> DTC P0496 >> Conditions for Setting the DTC
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Conditions for Setting the DTC

The control module detects vacuum greater than 4 inches H2O, during a non-purge condition for 4 seconds.