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Home >> Nissan-Datsun >> 2003 >> Sentra SE-R, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 367 (2004 - Engine Control System - Coupe) >> DTC P0101: MAF Sensor >> Diagnostic Trouble Code (DTC) Confirmation Procedure >> Procedure For Malfunction B

Procedure For Malfunction B

WARNING: This page is about a different car, the 2004 Infiniti G35. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Always drive vehicle at a safe speed.

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".
    Fig 1: CONSULT-II Display Screen
    G00723796Courtesy of NISSAN MOTOR CO., U.S.A.
  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.

  7. Maintain the following conditions for at least 10 consecutive seconds.
    Fig 2: CONSULT-II Display Screen
    G00723797Courtesy of NISSAN MOTOR CO., U.S.A.
    Fig 3: CONSULT-II Display Screen
    G00723798Courtesy of NISSAN MOTOR CO., U.S.A.
  8. If DTC is detected, go to "Diagnostic Procedure ".