Conditions for Running the DTC

WARNING: This page is about a different car, the 2004 GMC Sierra and 2004 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, P0341 are not set.
The camshaft position (CMP) sensor is incriminating.
The mass air flow (MAF) is more than 3 g/s while the engine is cranking.
The MAF is more than 5 g/s while the engine is running.