Conditions for Setting the DTC
WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects vacuum during a non-purge condition.
- The fuel tank vacuum is greater than 4 inches H2O or less than -4 in H2O for 5 seconds within 10 minutes of cold start.
- The 10 minute test must be completed before this DTC will set.