P1427 – EVAP Vent Control System High Flow (Nissan)

Description

The ECM detected excessive flow in the EVAP vent control system.

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Symptoms

  • Check engine light
  • Hesitation

Causes

  • Valve stuck open
  • Vacuum leak
  • ECM error

Diagnosis

  • Check valve position
  • Inspect vacuum lines
  • Scan EVAP data

Repair

  • Replace valve
  • Repair vacuum leak