2021 Nissan-Datsun Sentra SVFACTORY OEM SERVICE PROCEDURE

Component Inspection

  1. CHECK EGR VOLUME CONTROL VALVE-1 

    SYMBOL With CONSULT

    1. Turn ignition switch ON (engine stopped).
    2. Perform "EGR CONTROL VALVE" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.
    3. Operate "Up" or "Down", set "EGR VALVE POSITION" to 0 deg, and check value "V1" of "EGR VALVE POSITION SEN".

    Does "V1" become 0.5+/-0.1 V?

    YES

    GO TO 2.

    NO

    Replace EGR volume control valve.

  2. CHECK EGR VOLUME CONTROL VALVE-2 

    SYMBOL With CONSULT

    1. Operate "Up" or "Down", set "EGR VALVE POSITION" to 70 deg, and check value "V2" of "EGR VALVE POSITION SEN".

    Does "V2" become 3.6+/-0.25 V?

    YES

    GO TO 3.

    NO

    Replace EGR volume control valve. Refer to Exploded View .

  3. CHECK EGR VOLUME CONTROL VALVE-3 
    1. Turn ignition switch OFF
    2. Remove EGR volume control valve.
    3. Check the resistance between EGR volume control valve terminals.

      EGR volume control valve

      Resistance

      (Approx.)

      +

      -

      Terminal

      6

      5

      1 - 100 Ohms

    Is the inspection result normal?

    YES

    GO TO 4.

    NO

    Replace EGR volume control valve. Refer to Exploded View .

  4. CHECK EGR VOLUME CONTROL VALVE VISUALLY 

    Check if any foreign objects interferes with EGR volume control valve.

    Is the inspection result normal?

    YES

    INSPECTION END

    NO

    Replace or replace error-detected parts. Refer to Exploded View .

Factory Service Tools

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.

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