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Home › Pontiac › 2007 › Vibe Standard › Repair and Diagnosis › Engine Performance › System › Engine Control System & Fuel System - DTC P0452 To DTC P2138 › DTC P0456 › Conditions for Setting the DTC

Conditions for Setting the DTC

The specified minimum value of vacuum pressure was not achieved.
OR
The minimum value can not be maintained for the specified portion of the leak test.