P1498 – EVAP System Vacuum Leak Detected (Nissan)

Description

The ECM detected a vacuum leak in the EVAP system.

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Symptoms

  • Fuel smell
  • High emissions

Causes

  • Hose leak
  • Valve failure
  • Loose fittings

Diagnosis

  • Smoke test
  • Inspect hoses
  • Scan EVAP data

Repair

  • Repair hoses
  • Replace valve

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