Conditions for Running the DTC: P2270

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

DTCs P0030, P0053, P0101, P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0118, P0120, P0121, P0122, P0123, P0128, P0131, P0132, P0133, P0134, P0135, P0171, P0172, P0201, P0202, P0203, P0204, P0205, P0206, P0220, P0442, P0443, P0453, P0454, P0455, P0496, P1133, P1516, P2101, P2135, P2271, P2A00 are not set.
The system voltage is between 10-18 volts.
The engine run time is more than 300 seconds.
The engine speed is between 625-1,750 RPM.
The airflow is between 3-15 g/s.
The Loop Status parameter is Closed.
The vehicle speed is between 40-137 km/h (25-85 mph)
The above conditions have been met for more than 1 second.
THEN
The short term fuel trim is between 0.9-1.05.
The EVAP purge command is 0 percent for more than 4 seconds.
This DTC runs once per trip when all of the above conditions have been met.