HEATED OXYGEN SENSOR (HO2S) [SKYACTIV-G 2.0, SKYACTIV-G 2.5]

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Purpose/Function

•  Detects the oxygen concentration (theoretical air/fuel ratio) in the exhaust gas as basic information for mainly determining the fuel injection amount and as information for determining the deterioration of catalytic converter.
•  Detects the oxygen concentration (theoretical air/fuel ratio) in the exhaust gas and inputs it to the PCM as an oxygen concentration (theoretical air/fuel ratio) signal.

Construction

•  Installed on the rear side of the exhaust manifold.
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•  A zirconia element has been adopted as the detecting element for detecting the oxygen concentration (theoretical air/fuel ratio).

Operation

•  Inputs the signal, which fluctuates according to the oxygen concentration (theoretical air/fuel ratio), to the PCM.
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HO2S characteristic

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Fail-safe

DTC No.

Fail-safe function
P0037:00
•  Stops the fuel feedback control of the HO2S.
P0038:00
•  Stops the fuel feedback control of the HO2S.