Conditions For Running DTC

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

DTCs P0106, P0107, P0108, or P0237 are not set.
The engine speed is more than 500 RPM.
The total fuel quantity burned is more than 2000 mm³ .
The Engine Coolant Temperature (ECT) is more than 140°F (60°C).