Conditions for Setting the DTC: P2227

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

The ECM detects that the BARO pressure is not within a range of 50-115 kPa for greater than 2 seconds.
The ECM detects that the BARO pressure changed greater than 10 kPa. The condition exists for greater than 2 seconds.
The ECM detects that the BARO pressure changed greater than 2 kPa within 5 seconds of engine start.
The ECM detects that the BARO pressure changed greater than 30 kPa since the last ignition cycle. The condition exists for greater than 200 mS at engine start.