AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [MZR-CD (RF Turbo)]


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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.
Note
•  If the A/F sensor is replaced, always perform each adjustment procedure using the following steps.

STEP

ACTION

PAGE/CONDITION

1
Replace the A/F sensor.
2
Switch the ignition to on.
3
Perform A/F sensor data reset procedure.
4
Start the engine.
Verify that the MIL dose not illuminate.
5
Switch the ignition to off.
6
Switch the ignition to on (Engine off).
7
Perform KOEO self-test procedure.
8
Switch the ignition to off.
9
Wait for 20 s.
10
Start the engine.
11
Perform KOER self-test procedure.
Warm up until the exhaust gas temperature (EXHTEMP1, EXHTEMP2, EXHTEMP3 PID) is 100 °C {212 °F} or more.
12
Perform diesel particulate filter regeneration procedure.
Engine coolant temperature 70 °C {158 °F} or more.
13
Using the following PIDs, verify that the diesel particulate filter regeneration has been completed.
―  REG_REQ_A
―  REG_REQ_F
14
Perform repair verification drive mode.
15
Verify that O2S11_CAL value is not 0 using the PID O2S11_CAL.
―  If the value is 0, return to the previous step.
16
Switch the ignition to off.

1.  Disconnect the negative battery cable.

2.  Remove the aerodynamic under cover No.2. (See AERODYNAMIC UNDER COVER NO.2 REMOVAL/INSTALLATION.)

3.  Disconnect the A/F sensor connector.

4.  Remove in the order indicated in the table.

5.  Install in the reverse order of removal.

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1
A/F sensor


A/F Sensor Removal Note

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

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A/F Sensor Installation Note

1.  Install the A/F sensor using the SST.

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Tightening torque
29—49 N·m {3.0—4.9 kgf·m, 22—36 ft·lbf}