Conditions for Running the DTCs

WARNING: This page is about a different car, the 2018 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.

P0325

Engine is running for 2 s or greater.
Engine speed is between 400 - 5, 500 RPM for 75 or more cumulative revolutions.
Engine air flow is between 20 - 2000 mg per cylinder.
The engine coolant temperature (ECT) is -40°C (-40°F) or warmer.
The intake air temperature (IAT) sensor 1 is -40°C (-40°F) or warmer.

P0327 or P0328

Engine speed is less than 8, 500 RPM.

The DTCs run continuously when the above conditions are met.