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Home >> Nissan-Datsun >> 2004 >> Quest SL >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System >> DTC P1273, P1283: A/F Sensor 1 >> DTC Confirmation Procedure >> Testing Condition: >> With CONSULT-II
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With CONSULT-II

  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Turn ignition switch ON and select "SELF-LEARNING CONT" in "WORK SUPPORT" mode with CONSULT-II.
  4. Clear the self-learning coefficient by touching "CLEAR".
  5. Turn ignition switch OFF and wait at least 10 seconds.
  6. Start engine and keep the engine speed between 3,500 and 4,000 RPM for 1 minute under no load.
  7. Let engine idle for 1 minute.
  8. Keep engine speed between 2,500 and 3,000 RPM for 13 minutes.
  9. If 1st trip DTC is detected, go to DIAGNOSTIC PROCEDURE  .
    Fig 1: Displaying Work Support Screen
    G00775746Courtesy of NISSAN MOTOR CO., U.S.A.