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Downstream Oxygen Sensors

  1. Start engine and bring to normal operating temperature > 82 °C (180 °F).
  2. Drive the vehicle steadily between 48 - 97 km/h (30 - 60 mph) for 10 minutes.
  3. Drive the vehicle above 3000 rpm in 3rd gear at a steady speed. Lift foot completely off accelerator and coast for 30 seconds.
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