When Monitored and Set Condition
- When Monitored: Once per driving cycle with the engine at idle, air conditioning is off, barometric pressure is greater than 78 kPa (11 psi), engine coolant temperature is greater than 50°C (122°F) and no other DTC set.
- Set Condition: When the test is enabled, the O2 Sensor must increase by at least 23% (rich).