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P1466 – EVAP System Vent Valve Stuck Open

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Symptoms

  • Check engine light
  • Possible EVAP leak

Causes

  • Broken spring
  • Valve failure
  • Hose leak

Diagnosis

  • Command vent valve
  • Inspect hoses
  • Check valve movement

Repair

  • Replace vent valve
  • Repair hoses
  • Secure connector
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