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REMOVAL AND INSTALLATION
 
 
caution
  • Do not reuse the heated oxygen sensor that has been dropped.
  • When the linear air-fuel ratio sensor is replaced, initialize the learned value using scan tool (M.U.T.-IIISE) (Refer to GROUP 00 - Precautions before Service, Initialization Procedure for Learning Value in DFI and MFI Engine ). <From 19 Model year>
<FWD>
Removal steps
1.Main muffler
2.Gasket
3.Exhaust center pipe
4.Seal ring
5.Heat cover
•Floor console side cover (Refer to GROUP 52A - Floor Console Assembly ).
6.Linear A/F sensor connector
<<A>>>>B<<7.Linear A/F sensor
•Turn up the passenger's side floor carpet
8.Heated oxygen sensor (rear) connector
<<A>>>>B<<9.Heated oxygen sensor (rear)
10.Exhaust front pipe
11.Gasket
12.Catalytic converter bracket
<<A>>>>A<<13.Rivet
•Rear floor under cover (Refer to GROUP 51 - Under Cover ).
14.Dash panel heat protector
<<B>>>>A<<15.Rivet
16.Front floor panel front heat protector
<<B>>>>A<<17.Rivet
18.Front floor panel rear heat protector
<AWD>
Removal steps
1.Main muffler
2.Gasket
3.Exhaust center pipe
4.Seal ring
5.Heat cover
•Floor console side cover (Refer to GROUP 52A - Floor Console Assembly ).
6.Linear A/F sensor connector
<<A>>>>B<<7.Linear A/F sensor
•Turn up the passenger's side floor carpet
8.Heated oxygen sensor (rear) connector
<<A>>>>B<<9.Heated oxygen sensor (rear)
•Transfer assembly (Refer to GROUP 23A - Transfer assembly ).
10.Exhaust front pipe
11.Gasket
<<B>>>>A<<12.Rivet
13.Front floor panel front heat protector
•Rear floor under cover (Refer to GROUP 51 - Under Cover ).
14.Dash panel heat protector
<<B>>>>A<<15.Rivet
16.Front floor panel front heat protector
<<B>>>>A<<17.Rivet
18.Front floor panel rear heat protector
Required Special Tool:
  • MB991953: Oxygen Sensor Wrench
 
 
REMOVAL SERVICE POINTS
 
 
<<A>> LINEAR A/F SENSOR/HEATED OXYGEN SENSOR REMOVAL
Use special tool heated oxygen sensor wrench (MB991953) to remove the heated oxygen sensor and linear A/F sensor.
 

 
 
<<B>> RIVET REMOVAL
cautionBe careful not to damage the heat protector with the drill.
Use a drill [6.0 mm (0.24 inch)] to make a hole in the rivet to break it, and then remove the rivet.
 
 
 
 
INSTALLATION SERVICE POINTS
 
 
>>A<< RIVET INSTALLATION
Use a rivet tool shown in the illustration to connect the parts with rivets by the following procedures.
1. Insert the rivet into a corresponding location.
2. Set the rivet tool at a portion A of rivet.
3. While pushing the flange surface of the rivet onto parts to be fixed with the rivet tool, press the handle of the tool.
4. Thin part of portion A of the rivet will be cut off and the parts is fixed in position.
 

 
 
>>B<< LINEAR A/F SENSOR/HEATED OXYGEN SENSOR INSTALLATION
In the same manner as removal, use special tool heated oxygen sensor wrench (MB991953) to tighten the heated oxygen sensor and linear A/F sensor to the specified torque.
Tightening torque: 44 ± 5 N·m (32 ± 3 ft-lb)