Conditions For Running DTC

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, P0341, P0342, or P0343 are not set.
The Camshaft Position (CMP) sensor is transitioning.
The Mass Airflow (MAF) is more than 3 g/s.
The ignition switch is in the Crank mode.