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Home >> Acura >> 2011 >> ZDX >> Repair and Diagnosis >> Engine Performance >> System >> Advanced Diagnostics >> DTC P0404: Exhaust Gas Recirculation (EGR) Valve Circuit Range/Performance Problem >> Driving Pattern

Driving Pattern

  1. Start the engine. Hold the engine speed at 3,000 rpm without load (in P or N) 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.