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Home >> Infiniti >> 2005 >> G35 Base, 2D Coupe, Standard >> Repair and Diagnosis >> Engine Performance >> Engine Control System - Coupe >> DTC P1276, P1286: A/F Sensor 1 >> Overall Function Check >> With GST

With GST

  1. Start engine and warm it up to normal operating temperature.
  2. Drive the vehicle at a speed of 80 km/h (50 MPH) for a few minutes in the suitable gear position.
  3. Set shift lever to D position (A/T) or 5th position (M/T) then release the accelerator pedal fully until the vehicle speed decreases to 50 km/h (30 MPH).
    NOTE: Never apply brake during releasing the accelerator pedal.
  4. Repeat steps  2 to  3 for five times.
  5. Stop the vehicle and turn ignition switch OFF.
  6. Wait at least 10 seconds and restart engine.
  7. Repeat steps  2 to  3 for five times.
  8. Stop the vehicle and connect GST to the vehicle.
  9. Make sure that no DTC is displayed.

    If the DTC is displayed, go to Diagnostic Procedure .

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