Conditions for Setting the DTC
WARNING: This page is about a different car, the 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
P0133
- The ECM detects that the heated oxygen sensor (HO2S) 1 rich to lean or lean to rich average response time is more than 0.1 s.
- DTC P0133 sets within 60 s when the above condition is met.
P1133
- The ECM detects that the heated oxygen sensor (HO2S) 1 rich to lean counts, or the lean to rich counts are less than a calibrated value.
- DTC P1133 sets within 60 s when the above condition is met.
P2270
- The ECM detects that the heated oxygen sensor (HO2S) 2 sensor cannot achieve voltage equal to or more than 775 mV.
and
- The ECM detects that the accumulated mass air flow monitored during the Stuck Lean Voltage Test is more than 45 g.
P2271
- The ECM detects that the heated oxygen sensor (HO2S) 2 sensor cannot achieve voltage equal to or less than 100 mV.
and
- The ECM detects that the accumulated mass air flow monitored during the stuck rich voltage test is more than 20 g.