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Home >> Infiniti >> 2008 >> FX45 >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (VK45DE) - DTC U1000 Through P0153 >> DTC P0101 MAF Sensor >> DTC Confirmation Procedure >> Procedure For Malfunction B >> With Consult-III

With Consult-III

  1. Start engine and warm it up to normal operating temperature.

    If engine cannot be started, go to  "DIAGNOSTIC PROCEDURE ".

  2. Select "DATA MONITOR" mode with CONSULT-III.
  3. Check the voltage of "MAS A/F SE-B1" with "DATA MONITOR".
  4. Increases engine speed to about 4, 000 rpm.
  5. 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: Engine Speed Graph
    G04900186Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Maintain the following conditions for at least 10 consecutive seconds.
    CONDITIONS REFERENCE

    ENG SPEED More than 2, 000 rpm
    THRTL SEN 1 More than 3V
    THRTL SEN 2 More than 3V
    Selector lever Suitable position
    Driving location Driving vehicle uphill (Increased engine load) will help maintain the driving conditions required for this test.
    Fig 2: CONSULT-III Display - Data Monitor
    G04900187Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Check 1st trip DTC.
  8. If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".