2004 Nissan-Datsun Sentra SE-RFACTORY OEM SERVICE PROCEDURE

With CONSULT-II

WARNING: This page is about a different car, the 2005 Nissan Frontier. However, it is still accessible from the selected car via links, so may be relevant.
  1. Perform ACCELERATOR PEDAL RELEASED POSITION LEARNINGΒ .
  2. Perform THROTTLE VALVE CLOSED POSITION LEARNINGΒ .
  3. Start engine and warm it up to normal operating temperature.
  4. Check that all items listed under the topic PREPARATION (previously mentioned) are in good order.
  5. Select "IDLE AIR VOL LEARN" in "WORK SUPPORT" mode.
    Fig 1: CONSULT-II Diagnosis Function Display (2 Of 4)
    G03593637Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Touch "START" and wait 20 seconds.
    Fig 2: CONSULT-II Diagnosis Function Display (3 Of 4)
    G03593638Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Make sure that "CMPLT" is displayed on CONSULT-II screen. If "CMPLT" is not displayed, Idle Air Volume Learning will not be carried out successfully. In this case, find the cause of the incident by referring to the Diagnostic Procedure below.
  8. Rev up the engine two or three times and make sure that idle speed and ignition timing are within the specifications.
    ITEM SPECIFICATION

    ITEM SPECIFICATION
    Idle speed M/T: 625 +/- 50 RPM (in Neutral position)
    A/T: 625 +/- 50 RPM (in P or N position)
    Ignition timing M/T: 15 +/- 5Β° BTDC (in Neutral position)
    A/T: 15 +/- 5Β° BTDC (in P or N position)
    Fig 3: CONSULT-II Diagnosis Function Display (4 Of 4)
    G03593639Courtesy of NISSAN MOTOR CO., U.S.A.
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When to See a Mechanic

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

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