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Home >> Buick >> 2004 >> Century Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 91 (Engine Controls Diagnosis 3.8L (DTC P0455 To P1404)) >> Diagnosis >> DTC P0455 >> Conditions For Setting the DTC

Conditions For Setting the DTC

WARNING: This page is about a different car, the 2004 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.

The EVAP system is not able to achieve or maintain vacuum during the diagnostic test.