Nissan Sentra B18 (2020-2025) Service Manual: Removal and Installation
REMOVAL
Disconnect each joint and mounting rubber.
-
Remove heated oxygen sensor 2 (1) using Tool (A).
:
FrontTool number (A)
: KV10114400 (NI-38365)
CAUTION:
-
Discard any heated oxygen sensor which has been dropped from a height of more than 0.5 m (19.7 in) onto a hard surface such as a concrete floor, use a new one.
-
Before installing new heated oxygen sensor, clean exhaust system threads using oxygen sensor thread cleaner and approved anti-seize lubricant.
Oxygen sensor thread cleaner
: — (NI-43897-12)
Oxygen sensor thread cleaner
: — (NI-43897-18)
-
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
-
Do not reuse seal bearing.
-
Do not reuse plate gasket.
-
Discard any heated oxygen sensor 2 which has been dropped onto a hard surface such as a concrete floor. Use a new one.
-
Before installing a new heated oxygen sensor 2, clean exhaust system threads using the oxygen sensor thread cleaner and apply anti-seize lubricant.
-
Do not over tighten heated oxygen sensor 2. Doing so may cause damage to the heated oxygen sensor 2, resulting in the “MIL” coming on.
-
Prevent rust preventives from adhering to the sensor body.
-
If heat insulator is badly deformed, repair or replace it. If deposits such as mud pile up on the heat insulator, remove them.
-
When installing heat insulator avoid large gaps or interference between heat insulator and each exhaust pipe.
-
Remove deposits from the sealing surface of each connection. Connect them securely to avoid gas fume leaks.
-
When installing each mounting rubber, use silicon oil to avoid twisting.
-
Temporarily tighten nuts and bolts. Check each part for unusual interference and mounting rubber interference, and then tighten them to the specified torque.
-
When installing each mounting rubber, avoid twisting or unusual extension in up/down, front/rear and right/left directions.
Exhaust Manifold to Exhaust Front Tube
Securely
insert plate gasket (2) into exhaust manifold (1) in the direction
shown. 
|
(3) |
: Stud bolt |
|
(4) |
: Exhaust front tube |
|
(5) |
: Nut |
CAUTION:
Do not reuse plate gasket.
Be careful not to damage plate gasket surface when installing.
Install exhaust front tube and tighten nut.
CAUTION:
-
Fasten stud bolts to the flange of exhaust manifold side to the specified torque before installing nuts.
-
Be careful that stud bolt does not interfere with hole of exhaust front tube.
After installing, check that stud bolt does not interfere with hole of exhaust front tube.
Exhaust Front Tube to Exhaust Main Muffler
Securely
insert seal bearing (3) into exhaust front tube (1) in the
direction shown. 
|
(2) |
: Stud bolt |
|
(4) |
: Exhaust main muffler |
|
(5) |
: Nut |
CAUTION:
Do not reuse seal bearing.
Be careful not to damage seal bearing surface when installing.
Install exhaust main muffler and tighten nut.
CAUTION:
-
Be careful that stud bolt does not interfere with hole of main muffler.
After installing, check that the stud bolt does not interfere with hole of main muffler.
Exploded View
Exploded View
1.
Mounting rubber
2.
...
Inspection
Inspection
INSPECTION AFTER INSTALLATION
Check
clearance between tail tube and rear bumper is even.
With engine
running, check exhaust tube joints for gas fume leaks and unusual
n ...
Other materials:
System
Cvt Control System
System Description
System Description
SYSTEM DIAGRAM
Name
Function
TCM
TCM
...
Engine Oils
Engine Oils
Prolonged and repeated contact with used engine
oil may cause skin cancer. Try to avoid direct skin contact with
used oil.
If skin contact is made, wash thoroughly with
soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS
Avoid prolonged ...
P271e-00 Wheel Torque Calculation Signal
Dtc Description
DTC Description
DTC DETECTION LOGIC
DTC
CONSULT screen terms
(Trouble diagnosis
content)
DTC detection
...
