DTC Parameters
WARNING: This page is about a different car, the 2002 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Engine running more than 20 seconds.
- ECT more than 68°F (20°C).
- System in closed-loop.
DTC sets when HO2S1 voltage is less than 300 millivolts for more than 5 seconds during power enrichment mode.