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Home › Nissan-Datsun › 2004 › Maxima SL, RE4F04B › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTC › DTC P1274, P1284: A/F Sensor › Diagnostic Procedure › 3. Clear The Self-Learning Data › With CONSULT-II

With CONSULT-II

  1. Start engine and warm it up to normal operating temperature.
  2. Select "SELF-LEARNING CONT" in "WORK SUPPORT" mode with CONSULT-II.
  3. Clear the self-learning control coefficient by touching "CLEAR".
  4. Run engine for at least 10 minutes at idle speed.

    Is the 1st trip DTC P0172 or P0175 detected? 

    Is it difficult to start engine? 

Fig 1: CONSULT-II Display Screen
G00877523Courtesy of NISSAN MOTOR CO., U.S.A.
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