When Monitored

This diagnostic runs when the following conditions are met:

• With the engine running.
• Vehicle speed above 96 km/h (60 mph).
• Throttle open for a minimum of 120 seconds.
• ECT greater than 70°C (158°F).
• Catalytic Converter temperature greater than 600° C (1112° F).
• Downstream Oxygen Sensor in a rich state.
  • During a decel fuel shutoff event, the downstream Oxygen Sensor should switch from rich to lean within a specific time.