Heated Oxygen Sensor 2 Heater

Heated oxygen Sensor 2 heater is integrated in the Sensor.

The ECM performs ON/OFF control of the heated oxygen Sensor 2 heater corresponding to the engine speed, amount of intake air and engine coolant temperature.

Condition

Heated oxygen Sensor 2 heater

Above 7, 500 RPM

OFF

Below 7, 500 RPM after the following conditions are met.

Engine: After warming up
Keeping the engine speed between 3, 500 and 4, 000 RPM for 1 minute and at idle for 1 minute under no load