Conditions for Setting the DTC: P0131
WARNING: This page is about a different car, the 2009 GMC Sierra and 2009 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- The ECM detects that the sensor Voltage parameter is less than 50 mV.
- DTC P0131 sets within 100 seconds during the lean test when the above condition is met.