Conditions for Running the DTC

WARNING: This page is about a different car, the 2008 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0090, P0091, P0092, P0191, P0192, P0193 are not set.
The ignition 1 signal parameter is less than 18.1 volts.
The relative injected fuel mass is between 5.016-500 percent.
The deceleration fuel cut-off (DFCO) is inactive.
The engine speed is greater than 25 RPM.
The engine start temperature is greater than -48°C (-54.4°F)
The DTCs run continuously when the above conditions are met for 2 seconds.