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Home >> Nissan-Datsun >> 2004 >> Quest SE >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P0101: MAF Sensor >> DTC Confirmation Procedure >> Procedure For Malfunction B >> With CONSULT-II
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With CONSULT-II

  1. Turn ignition switch ON.
  2. Start engine and warm it up to normal operating temperature.

    If engine cannot be started, go to  DIAGNOSTIC PROCEDURE   . 

  3. Select "DATA MONITOR" mode with CONSULT-II.
  4. Check the voltage of "MAS A/F SE-B1" with "DATA MONITOR".
  5. Increases engine speed to about 4,000 RPM.
  6. Monitor the linear voltage rise in response to engine speed increases.

    If NG, go to DIAGNOSTIC PROCEDURE  .

    If OK, go to following step.

    Fig 1: Identifying Voltage Of "AS A/F SE-B1"
    G00775304Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Maintain the following conditions for at least 10 consecutive seconds.
    Fig 2: Checking Reference Chart
    G00775305Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: Displaying Data Monitor
    G00775306Courtesy of NISSAN MOTOR CO., U.S.A.
  8. If DTC is detected, go to DIAGNOSTIC PROCEDURE  .