Nissan Sentra B18 (2020-2025) Service Manual: Air Cleaner and Air Duct

Exploded View

Exploded View

1.	Mass air flow sensor	2.	Resonator duct	3.	Clamp
4.	Air duct	5.	Clamp	6.	Air duct and resonator assembly
7.	Clip	8.	Air inlet duct	9.	Resonator
10.	Mounting rubber	11.	Air cleaner bracket	12.	Grommet
13.	Air cleaner case (lower)	14.	Air cleaner filter	15.	Air cleaner assembly
16.	Air cleaner case (upper)	A.	To blow-by hose. Refer to Exploded View.	B.	To electric throttle control actuator. Refer to Exploded View.

Removal and Installation

Removal and Installation

REMOVAL

Remove the core support cover. Refer to Exploded View.

Disconnect the harness connector from the mass air flow sensor.

Remove harness retainer from air cleaner case (upper).

Remove clips and remove the air inlet duct.

Loosen clamp connecting air duct and resonator assembly to air cleaner assembly.

Remove bolt securing air cleaner assembly.

Remove air cleaner assembly.

Remove the following components after removing the air cleaner assembly (if necessary): Remove mass air flow sensor from air cleaner assembly (if necessary).

CAUTION:

• Do not shock the mass air flow sensor.

• Do not disassemble the mass air flow sensor.

• Do not touch the sensor of the mass air flow sensor.

Remove the blow-by hose from the resonator duct. Refer to Exploded View. Loosen clamp and remove air duct and resonator assembly. Release clamp and remove air duct from resonator duct.

INSTALLATION

Installation is in the reverse order of removal.

Mass air flow sensor

After replacing mass air flow sensor, perform MIXTURE RATIO SELF-LEARNING VALUE CLEAR. Refer to Work Procedure.

Air Cleaner Assembly

CAUTION:

Check that mounting rubber is positioned in the mounting location and be careful not to allow it to be dislocated when installing air cleaner body.

Air Duct Assembly

• If removed, install air duct and resonator assembly by aligning tab (A) on electric throttle control actuator with tab (B) on air duct and resonator assembly.

  

  CAUTION:

  Do not allow foreign materials to adhere to the mounting part of air duct assembly and each mating part.

• When installing air cleaner assembly, align tab (B) of air duct and resonator assembly with mass air flow sensor boss (A).

  

Inspection

Inspection

• Inspect air cleaner assembly and air ducts for cracks or tears.

• If any damage is found, replace damaged parts.