•  Detects the oxygen concentration in the exhaust gas.

•  A heater has been adopted, allowing stable detection of the oxygen concentration even when the exhaust gas temperature is low.

•  The wide-range air/fuel ratio sensor, which can linearly detect the oxygen concentration (air/fuel ratio of the air-fuel mixture) in the exhaust gas in all ranges, from lean to rich, is used on the front HO2S. (With throttle valve actuator)