Conditions for Running the DTCs

WARNING: This page is about a different car, the 2017 Chevrolet Suburban 3500 HD. However, it is still accessible from the selected car via links, so may be relevant.

P0325 and P0330

Engine is running for 4 s or greater.
Engine speed is between 400 - 8, 500 RPM.
The engine coolant temperature (ECT) is -40°C (-40°F) or warmer.
The intake air temperature (IAT) sensor is -40°C (-40°F) or warmer.

P0327, P0328, P0332, and P0333

Engine speed is less than 8, 500 RPM.

The DTCs run continuously when the above conditions are met.