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P2422 fault code: what it means

P2422: EVAP vent shut valve stuck closed. Tank can build vacuum; fuel filling may click off early.

Engine and gearbox (powertrain) · Minor

Usual causes, most likely first

  1. vent shut valve stuck
  2. blocked vent hose or filter

P2422 by make

Honda

EVAP vent shut valve stuck closed. Tank can build vacuum; fuel filling may click off early.

Usual causes: vent shut valve stuck; blocked vent hose or filter

Kia

EVAP vent valve stuck closed. Logged with P0446 on older Sorento/Carnival from canister purge behaviour; fuel filling can be slow.

Usual causes: canister close/vent valve; blocked vent filter; canister

Not sure what P2422 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.