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Home >> Acura >> 2009 >> RL >> Repair and Diagnosis >> Engine Performance >> System >> Advanced Diagnostics >> DTC P0404: Exhaust Gas Recirculation (EGR) Control Circuit Range/Performance Problem >> Driving Pattern

Driving Pattern

  1. Start the engine. Hold the engine speed at 3,000 rpm without load (in Park or neutral) until the radiator fan comes on.
  2. Drive the vehicle at a speed between 15 - 75 mph (24 - 120 km/h) for at least 5 seconds.