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P1589 – Throttle Control Actuator Intermittent

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Symptoms

  • Hesitation
  • Unstable idle

Causes

  • Loose connector
  • Damaged wiring
  • Failing actuator

Diagnosis

  • Check connector
  • Inspect wiring
  • Test actuator

Repair

  • Repair wiring
  • Replace actuator
  • Secure connector
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