When Monitored

This diagnostic runs continuously when the following conditions are met:

• With the engine running,
• Vehicle speed above 96 kph (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.