AIR FUEL RATIO (A/F) SENSOR [SKYACTIV-D 2.2]

id0140z7004800


Purpose/Function

•  Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust gas as basic information for mainly determining the EGR amount.
•  Detects the oxygen concentration (all-range air/fuel ratio) in the exhaust gas and sends it to the PCM as an oxygen concentration (all-range air/fuel ratio) signal.

Construction

•  The A/F sensor is installed to the back of the exhaust manifold.
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•  A zirconia element has been adopted as the detecting element for detecting the oxygen concentration (all-range air/fuel ratio).

Operation

•  Sends the signal, which fluctuates according to the oxygen concentration (all-range air/fuel ratio), to the PCM.
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A/F sensor characteristic

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Fail-safe

DTC No.

Fail-safe function
P0031:00
P0032:00
P0130:00
P0134:00
P2238:00
P2239:00
P2252:00
P2253:00
•  Limits engine torque.
•  Inhibits the automatic DPF regeneration control.
•  Inhibits the manual DPF regeneration control.
•  Inhibits the EGR control.
P064D:00
•  Limits engine torque.
•  Limits the maximum engine speed.
•  Inhibits the automatic DPF regeneration control.
•  Inhibits the manual DPF regeneration control.
•  Inhibits the EGR control.
P2A00:00
•  Limits engine torque.
•  Inhibits the automatic DPF regeneration control.
•  Inhibits the manual DPF regeneration control.
•  Inhibits the EGR control.
•  Inhibits the boost control.