Conditions For Setting DTC
WARNING: This page is about a different car, the 2002 Pontiac Aztek and 2002 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.
The DTC will set if either of the following conditions are present:
- The HO2S 1 rich-to-lean transition time takes longer than 105 milliseconds.
- The HO2S 1 lean-to-rich transition time takes longer than 95 milliseconds.