Note. sensor catalog number (depending on engine modification) cm. Here.
Attention. Do not allow contact cleaner or other materials to come into contact with the oxygen sensor or sensor block. These materials can get into the oxygen sensor and cause it to malfunction.
The vehicle uses two oxygen sensors: a control oxygen sensor, whose replacement is described on this page, and a diagnostic oxygen sensor, whose replacement is described Here.
Control oxygen sensor (UDCC)
Located in the threaded hole in the exhaust manifold.
Removing
For vehicles with K4M engine
Place the car in the workplace, brake with the parking brake, turn off the ignition and disconnect the wire terminal "masses" from the battery.
Remove the intake silencer and air cleaner housing.
Disconnect the harness connector from connector 1, Figure 11-21, control oxygen sensor.
Figure 11-21 - Removing the control oxygen sensor of the K4M engine: 1 - block of the control oxygen sensor; 2 - mounting bracket; 3 - control oxygen sensor
Disconnect the block of the control oxygen sensor from the mounting bracket 2.
Unscrew the control oxygen sensor 3 (tool Mot. 1495 or interchangeable insert 22 from the set of type 811382 f. "USAG").
For vehicles with K7M engine
Put the car on a two-post lift, apply the parking brake, turn off the ignition and disconnect the wire terminal "masses" from the battery.
Remove the engine crankcase protection.
Remove block 1, Figure 11-22, of the control oxygen sensor from the holder by sliding it.
Unscrew the control oxygen sensor 3 (tool Mot. 1495 or interchangeable insert 22 from the set of type 811382 f. "USAG").
Figure 11-22 - Removing the control oxygen sensor of the K7M engine: 1 - block of the control oxygen sensor; 2 - clamp; 3 - control oxygen sensor
Installation
For vehicles with K4M engine
Install control sensor 3, Figure 11-21, for oxygen. Sensor tightening torque 45 Nm (4.5 kgf·m) (tool Mot. 1495 or interchangeable insert 22 from the set of type 811382 f. "USAG", torque wrench).
Attach the block of the control oxygen sensor to the mounting bracket 2.
Connect the wiring harness connector to connector 1 of the oxygen control sensor.
Install the air filter housing and intake silencer (see above).
Attach wire terminal "masses" to the battery.
For vehicles with K7M engine
Install control sensor 3, Figure 11-22, for oxygen. Sensor tightening torque 45 Nm (4.5 kgf·m) (tool Mot. 1495 or interchangeable insert 22 from the set of type 811382 f. "USAG" torque wrench).
Fasten the sensor harness with a clamp 2.
Connect the wiring harness connector to connector 1 of the oxygen control sensor.
Install the block of the control oxygen sensor in the holder.
Install crankcase protection
Attach wire terminal "masses" to the battery.