AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.5]


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Warning
•  A hot engine and exhaust system can cause severe burns. Turn off the engine and wait until they are cool before removing the exhaust system.
Caution
•  Do not allow flammable objects such as the taping for bundling wiring harness to come into contact with the catalytic converter.
Note
•  If the A/F sensor is replaced, perform the “Operation After Replacing A/F Sensor” procedure. (See Operation After Replacing A/F Sensor.)
•  If penetrant lubricating spray penetrates the airflow hole of the A/F sensor, it could cause interference with the A/F sensor function.
•  When removing the A/F sensor, wrap a rag around the lower position so that penetrant lubricating spray does not get sprayed into the airflow hole.
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Operation After Replacing A/F Sensor

1.  If the A/F sensor is replaced, perform the following procedure.

Step

Action

Page

1
Perform the A/F sensor data reset procedure.
2
Switch the ignition off.
3
Wait for 20 s.
4
Perform the KOEO self test procedure.
5
Start the engine.
6
Verify that the check engine light does not illuminate.
7
Perform the KOER self test procedure.
8
Perform the compulsory DPF regeneration procedure.
9
Perform the following procedure.
Caution
•  If the M-MDS is connected to the DLC-2, disconnect the M-MDS. Otherwise, it could adversely affect safety when performing the procedure.
1.  Vehicle is traveling at a speed of 50 km/h {31 mph} or more.
2.  Release the accelerator pedal at a vehicle speed of 50 km/h {31 mph} or more and maintain this condition for 6 s.
10
Verify that the PID “O2S11_CAL” value is other than 0.


A/F Sensor Removal/Installation

1.  Disconnect the negative battery cable. (See NEGATIVE BATTERY CABLE DISCONNECTION/CONNECTION [SKYACTIV-D 1.5].)

2.  Lift up the vehicle.

3.  Remove the plate (exhaust system). (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 1.5].)

4.  Disconnect the A/F sensor connector.

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5.  Remove the A/F sensor using the SST.

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6.  Install in the reverse order of removal.

7.  Perform the “Operation After Replacing A/F Sensor” procedure. (See Operation After Replacing A/F Sensor.)