Conditions For Running DTC

WARNING: This page is about a different car, the 2002 GMC Sonoma and 2002 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0122, or P0123 are not set.
The engine run time is more than 20 seconds.
The Engine Coolant Temperature (ECT) is more than 131°F (56°C).
The engine speed is 1600-6400 RPM.
The Manifold Absolute Pressure (MAP) is more than 60 kPa.