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Home >> Nissan-Datsun >> 2009 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS U0101 To P0153 >> DTC P0101 MAF Sensor >> DTC Confirmation Procedure >> Procedure For Malfunction B >> With CONSULT-III

With CONSULT-III

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

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

  3. Select "DATA MONITOR" mode with CONSULT-III.
  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 , "DIAGNOSIS PROCEDURE ".

    If OK, go to following step.

    Fig 1: Consult III Screen Display - Voltage Graph
    G04874958Courtesy of NISSAN MOTOR CO., U.S.A.
  7. Maintain the following conditions for at least 10 consecutive seconds.
    ENGINE SPEED SPECIFICATION

    ENG SPEED More than 2, 000 RPM
    TP SEN 1-B1 More than 1.5 V
    TP SEN 2-B1 More than 1.5 V
    Shift lever Suitable position
    Driving location Driving vehicle uphill (Increased engine load) will help maintain the driving conditions required for this test.
  8. Check 1st trip DTC.
  9. If 1st trip DTC is detected, go to , "DIAGNOSIS PROCEDURE ".
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