Conditions for Setting the DTC: P0108
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
The ECM detects that the MAP sensor voltage is more than 4.90 volts for more than 4 seconds.