Recommended replacement interval for the part category Lambda Sensor : 100000 km

Important!

This replacement procedure can be used for:
TOYOTA CELICA Convertible (AT20_, ST20_) 2.0 GTi (ST202), TOYOTA CELICA Convertible (AT20_, ST20_) 2.0 i 16V (ST202) … View more

The steps may slightly vary depending on the car design.

This video shows the replacement procedure of a similar car part on another vehicle

All the parts you need to replace – Lambda Sensor for CELICA Convertible (AT20_, ST20_) and other TOYOTA models

Lambda Sensor

Socket, lambda probe

Socket, lambda sensor

How to change Lambda Sensor on TOYOTA CELICA Convertible (AT20_, ST20_) 2.0 i 16V (ST202) – tips for proper car maintenance

Lambda Sensor for TOYOTA CELICA Convertible (AT20_, ST20_) 2.0 i 16V (ST202) Petrol (170 hp)

Simple DIY car repair steps – Replacing Lambda Sensor on TOYOTA CELICA Convertible (AT20_, ST20_) 2.0 GTi (ST202)

Lambda Sensor for TOYOTA CELICA Convertible (AT20_, ST20_) 2.0 GTi (ST202) Petrol (175 hp)

Replacement: lambda sensor – TOYOTA CELICA Convertible (AT20_, ST20_). List of the tools you'll need:

                        Wire brush
                      
                        WD-40 spray
                      
                        All-purpose cleaning spray
                      
                        Electronic spray
                      
                        High-temperature ceramic grease
                      
                        Torque wrench
                      
                        Flare nut wrench  #22
                      
                        22-mm oxygen sensor socket
                      
                        Thread tap
                      
                        Ratchet wrench
                      
                        Flat screwdriver
                      
                        Nippers
                      
                        Crimping pliers
                      
                        Heat gun
                      
                        Fender cover

Buy tools

Replacement: lambda sensor – TOYOTA CELICA Convertible (AT20_, ST20_). AUTODOC experts recommend:

After replacing the oxygen sensor, clear the trouble code from the electronic control unit and let the ECU adapt itself to the new sensor.
All work should be done with the engine stopped.
Please note: all work on the car – TOYOTA CELICA Convertible (AT20_, ST20_) – should be done with the engine switched off.

Carry out replacement in the following order:

Step 1

Open the hood.

Step 2

Use a fender protection cover to prevent damaging paintwork and plastic parts of the car.

Step 3

Detach the oxygen sensor connector.
Step 4

Unfasten the clamp to release the oxygen sensor wiring harness.Use a flat screwdriver.
Step 5

Clean the oxygen sensor fastener.Use a wire brush.Use WD-40 spray.
Step 6

Unscrew the oxygen sensor fastener.Use a flare nut spanner #22.Use a ratchet wrench.
Step 7

Remove the oxygen sensor.
Step 8

Cut the thread for the new oxygen sensor.Use a thread tap.Use a ratchet wrench.
Step 9

Clean the oxygen sensor mounting seat.Use all-purpose cleaning spray.

Replacement: lambda sensor – TOYOTA CELICA Convertible (AT20_, ST20_). Professionals recommend:

In this case, the connector needs to be removed from the old oxygen sensor and installed on a new one.
Step 10

Cut off the connector from the old oxygen sensor.Use nippers.
Step 11

Shorten the wires of the old oxygen sensor connector in such a way that each successive wire is shorter than the previous one.Use nippers.
Step 12

Shorten the wires of the new oxygen sensor in a corresponding way.Use nippers.

Replacement: lambda sensor – TOYOTA CELICA Convertible (AT20_, ST20_). AUTODOC experts recommend:

Follow the colour coding of the wires. If it does not match, see the manufacturer's instructions for the correct connection order.
Step 13

Strip the wires of the connector and the new sensor.Use nippers.
Step 14

Place the heat shrink tubing on the oxygen sensor wiring.
Step 15

Using solder sleeves, splice the oxygen sensor wires with the connector wires according to the colour coding.
Step 16

Crimp the solder sleeves.Use crimping pliers.
Step 17

Shrink the heat shrink tubes of the solder sleeves.Use a heat gun.
Step 18

Slide the heat shrink tubing you put in place earlier over the wire connection.
Step 19

Shrink the heat shrink tube.Use a heat gun.
Step 20

Treat the thread of the new oxygen sensor.Use high-temperature ceramic grease.
Step 21

Install the new oxygen sensor.
Step 22

Tighten the oxygen sensor fastener.Use a 22-mm oxygen sensor socket.Use a torque wrench.Tighten it to 40 Nm torque.
Step 23

Treat the oxygen sensor connector.Use dielectric grease.
Step 24

Attach the oxygen sensor connector.
Step 25

Fasten the oxygen sensor wiring with the clamp.

Step 26

Switch on the ignition.

Step 27

Run the engine for a few minutes.This is necessary in order to make sure that the component operates properly.

Step 28

Shut off the engine.

Step 29

Switch off the ignition.

Step 30

Remove the fender protection cover.

Step 31

Close the hood.

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