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P1578 – Throttle Control Electrical Fault

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Symptoms

  • Reduced power
  • Hesitation

Causes

  • Damaged wiring
  • Faulty actuator
  • Connector corrosion

Diagnosis

  • Check wiring
  • Test actuator
  • Inspect connector

Repair

  • Repair wiring
  • Replace actuator
  • Clean connector
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