Conditions for Running the DTC

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

DTCs P0461, P0462, P0463, P2066, P2067, P2068 are not set.
The vehicle speed is 0 km/h (0 mph).
The engine has been idling for more than 2 minutes and 20 seconds.
The primary fuel level is less than 60 L (15.8 gal).
The secondary fuel level is more than 3 L (2.6 gal).