LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2008 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - DTCS U1000 To P0308 >> DTC P0101: MAF Sensor >> DTC Confirmation Procedure >> Procedure For Malfunction B >> With CONSULT-III
April 5, 2026: LEMON Manuals is launched! Read the announcement.

With CONSULT-III

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

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

    If OK, go to following step.

    Fig 1: MAS A/F SE-B1 Voltage Graph
    G05739348Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Maintain the following conditions for at least 10 consecutive seconds.
    ENG SPEED SPECIFICATION

    ENG SPEED More than 2, 000 RPM
    TP SEN 1-B1 More than 3V
    TP SEN 2-B1 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.
  7. Check 1st trip DTC.
  8. If 1st trip DTC is detected, go to "DIAGNOSIS PROCEDURE ".
scientia non olet · About LEMON Manuals