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AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [SKYACTIV-D 1.8]

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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 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.

(See AIR FUEL RATIO (A/F) SENSOR DATA RESET [SKYACTIV-D 1.8].)

2

Switch the ignition off.

—

3

Wait for 30 s.

—

4

Switch the ignition ON (engine off).

—

5

Perform the KOEO self test procedure.

(See DTC INSPECTION.)

6

Start the engine.

—

7

Verify that the check engine light does not illuminate.

—

8

Perform the KOER self test procedure.

(See DTC INSPECTION.)

9

Perform the compulsory diesel particulate filter regeneration procedure.

(See COMPULSORY DIESEL PARTICULATE FILTER REGENERATION [SKYACTIV-D 1.8].)

10

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.

—

11

Verify that the PID “O2S11_CAL” value is other than 0.

(See DTC INSPECTION.)

Step	Action	Page
1	Perform the A/F sensor data reset procedure.	(See AIR FUEL RATIO (A/F) SENSOR DATA RESET [SKYACTIV-D 1.8].)
2	Switch the ignition off.	—
3	Wait for 30 s.	—
4	Switch the ignition ON (engine off).	—
5	Perform the KOEO self test procedure.	(See DTC INSPECTION.)
6	Start the engine.	—
7	Verify that the check engine light does not illuminate.	—
8	Perform the KOER self test procedure.	(See DTC INSPECTION.)
9	Perform the compulsory diesel particulate filter regeneration procedure.	(See COMPULSORY DIESEL PARTICULATE FILTER REGENERATION [SKYACTIV-D 1.8].)
10	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.	—
11	Verify that the PID “O2S11_CAL” value is other than 0.	(See DTC INSPECTION.)

A/F Sensor Removal/Installation

1. Disconnect the negative battery terminal. (See NEGATIVE BATTERY TERMINAL DISCONNECTION/CONNECTION [(E)].)

2. Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

3. Disconnect the A/F sensor connector.

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4. Disconnect the wiring harness clip.

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5. Remove the wiring harness from the clip. (See Wiring harness installation note.)

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6. Remove the turbocharger insulator. (See TURBOCHARGER WITH VARIABLE TURBINE GEOMETRY REMOVAL/INSTALLATION [SKYACTIV-D 1.8].)

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

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8. Install in the reverse order of removal.

9. Perform the Operation After Replacing A/F Sensor procedure. (See Operation After Replacing A/F Sensor.)

Wiring harness installation note

1. Install the wiring harness as shown in the figure.

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