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Home >> Infiniti >> 2006 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1225 To P2A03 >> DTC P2A00, P2A03 A/F Sensor 1 >> DTC Confirmation Procedure >> With GST

With GST

  1. Start engine and warm it up to normal operating temperature.
  2. Turn ignition switch OFF and wait at least 10 seconds.
  3. Disconnect mass air flow sensor harness connector.
  4. Start engine and let it idle for at least 5 seconds.
  5. Stop engine and reconnect mass air flow sensor harness connector.
  6. Select Service $03 with GST and make sure that DTC P0102 is detected.
  7. Select Service $04 with GST and erase the DTC P0102.
  8. Start engine and keep the engine speed between 3, 500 and 4, 000 rpm for 1 minute under no load.
    Fig 1: Locating Mass Airflow Sensor
    G04132678Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Let engine idle for 1 minute.
  10. Keep engine speed between 2, 500 and 3, 000 rpm for 20 minutes.
  11. Select Service $07 with GST.

    If 1st trip DTC is detected, go to "DIAGNOSTIC PROCEDURE ".

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