Conditions for Setting the DTC (w/LLT)
WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
The post catalyst fuel trim correction factor is biased rich by greater than -8 percent of the HO2S signal value for greater than 4 seconds or for a cumulative of 30 seconds.