Conditions for Setting the DTC
WARNING: This page is about a different car, the 2008 GMC Yukon and 2008 Chevrolet Tahoe. However, it is still accessible from the selected car via links, so may be relevant.
- The fuel tank vacuum is greater than 14 inches H2O vacuum for 5 seconds.
OR
- The FTP is less than -2.5 inches H2O or more than +5 inches for 120 seconds after a cold start.