Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 Pontiac Aztek and 2004 Buick Rendezvous. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0336, P0341, P1374 are not set.
The engine coolant temperature (ECT) is more than 70°C (158°F).