P1043 – Throttle Plate Stuck (BMW)

Description

P1043 BMW indicates the throttle plate is stuck or not moving freely.

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Symptoms

  • Poor acceleration
  • Hesitation
  • Rough idle

Causes

  • Carbon buildup
  • Mechanical obstruction
  • Actuator failure

Diagnosis

  • Inspect throttle plate
  • Check actuator
  • Clean throttle body

Repair

  • Clean throttle body
  • Replace actuator
  • Repair mechanism