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Home >> Honda >> 2006 >> Insight Standard >> Repair and Diagnosis >> Engine Performance >> System >> Advanced Diagnostics >> DTC P1121: Throttle Position (TP) Sensor Signal Lower Than Expected >> Driving Pattern
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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 steady speed between 15 - 75 mph (25 - 120 km/h) (the set MAP value or more) for at least 2 seconds.