Conditions for Running the DTC

WARNING: This page is about a different car, the 2006 Pontiac Montana SV6, 2006 Chevrolet Uplander, and 2006 Buick Terraza. However, it is still accessible from the selected car via links, so may be relevant.

The camshaft position (CMP) sensor signal is incrementing.
The mass air flow (MAF) is more than 2 g/s.
The engine is cranking or running.
The diagnostic runs continuously when the above conditions are met.