Conditions for Running

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.