Conditions for Running

WARNING: This page is about a different car, the 2003 Saturn LW300 and 2003 Saturn L300. However, it is still accessible from the selected car via links, so may be relevant.

DTCs P0421 and P0431 are not set.
The engine load is 20-45 percent.
The Manifold Absolute Pressure (MAP) sensor variation is less than 6 kPa.
The catalytic temperature is more than 662°F (350°C).
The engine is in Closed Loop fuel control.
The engine speed is 1000-2120 RPM.