Conditions For Running DTC

WARNING: This page is about a different car, the 2002 GMC Sierra and 2002 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0101, P0102, P0103, or P0341 are not set.
The camshaft position (CMP) sensor is transitioning.
The Mass Air Flow (MAF) is more than 3 g/s in the crank mode.
The MAF is more than 5 g/s in the running mode.