AIR FUEL RATIO (A/F) SENSOR REMOVAL/INSTALLATION [MZR-CD 2.2]

• 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.

(See AIR FUEL RATIO (A/F) SENSOR DATA RESET [MZR-CD 2.2].)

4

Start the engine.

Verify that the MIL does not illuminate.

5

Switch the ignition to off.

—

6

Switch the ignition to on. (Engine off)

—

7

Perform KOEO self-test procedure.

(See KOEO/KOER SELF TEST [MZR-CD 2.2].)

8

Switch the ignition to off.

—

9

Wait for 20 s.

—

10

Start the engine.

—

11

Perform diesel particulate filter regeneration procedure.

Engine coolant temperature 70 °C {158 °F} or more.

(See DIESEL PARTICULATE FILTER REGENERATION [MZR-CD 2.2].)

12

Perform KOER self-test procedure.

Warm up until the exhaust gas temperature (EXHTEMP1, EXHTEMP2 PID) is 100 °C {212 °F} or more.

(See KOEO/KOER SELF TEST [MZR-CD 2.2].)

13

Using the following PIDs, verify that the diesel particulate filter regeneration has been completed.

―  REG_REQ_A

―  REG_REQ_F

(See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].)

14

Perform repair verification drive mode.

(See OBD DRIVE MODE [MZR-CD 2.2].)

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.

—

STEP	ACTION	PAGE/CONDITION
1	Replace the A/F sensor.	—
2	Switch the ignition to on.	—
3	Perform A/F sensor data reset procedure.	(See AIR FUEL RATIO (A/F) SENSOR DATA RESET [MZR-CD 2.2].)
4	Start the engine.	Verify that the MIL does not illuminate.
5	Switch the ignition to off.	—
6	Switch the ignition to on. (Engine off)	—
7	Perform KOEO self-test procedure.	(See KOEO/KOER SELF TEST [MZR-CD 2.2].)
8	Switch the ignition to off.	—
9	Wait for 20 s.	—
10	Start the engine.	—
11	Perform diesel particulate filter regeneration procedure.	Engine coolant temperature 70 °C {158 °F} or more. (See DIESEL PARTICULATE FILTER REGENERATION [MZR-CD 2.2].)
12	Perform KOER self-test procedure.	Warm up until the exhaust gas temperature (EXHTEMP1, EXHTEMP2 PID) is 100 °C {212 °F} or more. (See KOEO/KOER SELF TEST [MZR-CD 2.2].)
13	Using the following PIDs, verify that the diesel particulate filter regeneration has been completed. ― REG_REQ_A ― REG_REQ_F	(See ON-BOARD DIAGNOSTIC TEST [MZR-CD 2.2].)
14	Perform repair verification drive mode.	(See OBD DRIVE MODE [MZR-CD 2.2].)
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.	—