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


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Special Service Tool (SST)

49 L018 001
 
O2 sensor wrench

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 a 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 30 s.
4
Switch the ignition ON (engine off).
5
Perform the KOEO self test procedure.
6
Start the engine.
7
Verify that the check engine light does not illuminate.
8
Perform the KOER self test 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.
11
Perform the compulsory diesel particulate filter regeneration procedure.


A/F Sensor Removal/Installation

•  With SCR system
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•  Without SCR system
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1.  Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION.)

2.  Turn the steering wheel completely to the right.

3.  Lift up the vehicle.

4.  Remove the front splash shield (RH). (See SPLASH SHIELD REMOVAL/INSTALLATION.)

5.  Disconnect the A/F sensor connector.

6.  Remove the plate (exhaust system). (See EXHAUST SYSTEM REMOVAL/INSTALLATION [SKYACTIV-D 2.2].)

7.  Remove the wiring harness from the wire clip A and B. (See Assembly of Wiring Harness to Wire Clip Note.)

•  With SCR system
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•  Without SCR system
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8.  Loosen the nuts (center bearing support) of the propeller shaft. (4WD) (See PROPELLER SHAFT REMOVAL/INSTALLATION.)

9.  Disconnect the propeller shaft on the front side and set the propeller shaft onto the front crossmember. (4WD) (See PROPELLER SHAFT REMOVAL/INSTALLATION.)

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

•  With SCR system
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•  Without SCR system
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11.  Install in the reverse order of removal.

12.  Perform operation after replacing A/F sensor. (See Operation After Replacing A/F Sensor.)


Assembly of Wiring Harness to Wire Clip Note

•  Secure the wiring harness to the wire clip so that the band on the wiring harness is positioned to the left side of the wire clip.
•  With SCR system
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•  Without SCR system
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