AutoCodes

OBD-II / P0455

Large EVAP system leak detected

The fuel-vapour system cannot hold the expected pressure. The cause can be as simple as a loose fuel cap.

Possible causes

  1. 01Loose or damaged fuel cap
  2. 02Disconnected EVAP hose
  3. 03Purge or vent valve
  4. 04Cracked tank or line

Safe checks

  • Tighten the fuel cap correctly.
  • Inspect visible hoses with the engine off.
  • Do not apply smoke or pressure without the right procedure.

Ne remplace pas le diagnostic d’un garage. Il vous aide d’abord à comprendre et décider. Original editorial content; always confirm manufacturer procedures and specifications.