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Home >> Honda >> 2009 >> S2000 Base >> Repair and Diagnosis >> Engine Performance >> System >> Advanced Diagnostics >> DTC P2271: Secondary Heated Oxygen Sensor (Secondary HO2S (Sensor 2)) Circuit Signal Stuck Rich >> Driving Pattern
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Driving Pattern

  1. Start the engine. Let it idle until the radiator fan comes on.
  2. Drive the vehicle at a steady speed of 35 mph (57 km/h) or more for at least 22.5 seconds.