Conditions for Running the DTC

WARNING: This page is about a different car, the 2008 GMC Sierra and 2008 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTC P0324 runs continuously when the engine speed is greater than or equal to 1,500 RPM and the engine load is greater than a calibrated amount.
DTC P0326 runs continuously when:
- The engine speed is greater than or equal to 500 RPM.
- The MAP is greater than 55 kPa.
- DTCs P0120, P0121, P0122, or P0123 are not set.
DTCs P0325, P0327, P0328, P0330, P0332, and P0333 run continuously when:
- The engine coolant temperature (ECT) is greater than 40°C (40°F).
- The engine run time is greater than 1 second.
- PTO is not active.