Conditions for Setting the DTC: P0140
WARNING: This page is about a different car, the 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the HO2S 2 voltage parameter is between 0.401-0.519 volt, or that the HO2S 2 internal resistance is more than 40,000 ohms while the calculated exhaust temperature is more than 500°C (932°F).
- DTC P0140 sets within 60 seconds when the above condition is met.