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Home >> Nissan-Datsun >> 2004 >> Sentra SE-R >> Repair and Diagnosis >> External Pages >> Different car >> Section 423 (Engine Control System - DTC) >> DTC P1274, P1284: A/F Sensor >> DTC Confirmation Procedure >> With GST
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With GST

WARNING: This page is about a different car, the 2004 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  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 MODE 3 with GST and make sure that DTC P0102 is detected.
  7. Select MODE 4 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.
  9. Let engine idle for 1 minute.
  10. Keep engine speed between 2,500 and 3,000 RPM for 20 minutes.
  11. Select MODE 7 with GST.

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

Fig 1: Locating MAF/IAT Sensor
G00877516Courtesy of NISSAN MOTOR CO., U.S.A.
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