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P1470 – EVAP System High Purge Flow Detected

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Symptoms

  • Rough idle
  • Hard starting
  • Fuel smell

Causes

  • Stuck purge valve
  • Vacuum leak
  • ECU issue

Diagnosis

  • Command purge valve
  • Inspect hoses
  • Scan ECU

Repair

  • Replace purge valve
  • Repair vacuum leaks
  • Update ECU
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