Conditions for Setting the DTC
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the HO2S 1 rich-to-lean counts 2, or the lean-to-rich counts is less than a calibrated value.
- DTC P1133 sets within 60 seconds when the above condition is met.