Converter Warm-Up Test
WARNING: This page is about a different car, the 1997 GMC Pickup and 1997 Chevrolet Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- Vehicle is in "closed loop" fuel control.
- Commanded air/fuel ratio equals 14.7:1.
- MAP sensor pressure is greater than 15 gm/s.
- Predicted catalyst warm up temperature is greater than 842°F (450°C).