Conditions for Setting the DTC

WARNING: This page is about a different car, the 2008 Buick LaCrosse and 2008 Buick Allure. However, it is still accessible from the selected car via links, so may be relevant.

The Total Fuel Trim Avg. is less than -40 percent.
The LT FT Idle/Decel is less than -5.5 percent.
The condition exists for 4 seconds.