When Monitored

This diagnostic runs during a decel fuel shutoff event when the following conditions are met:

• With the engine running.
• Vehicle speed above 96 km/h (60 mph).
• ECT greater than 70°C (158°F).
• Throttle open for a minimum of 120 seconds.
• Catalytic Converter temperature greater than 600°C (1112°F).
• Downstream O2 Sensor in a rich state.