P0457Niski
System EVAP — wyciek (luźna nakrętka wlewu paliwa)
Układ napędowy
Sprawdź szczegóły →P0456
NiskiEVAP System — Very Small Leak Detected
OBD-II (EN): Evaporative Emission Control System Leak Detected (Very Small Leak)
Code P0456 indicates a very small leak detected in the fuel vapor management system. Most common cause: loose or worn fuel cap. Try tightening it and clearing the code.
Symptoms
Check engine light, no drivability symptoms, detected only during EVAP test
Possible causes
Microscopic crack in EVAP hose, aging seals, loose fuel cap, faulty canister vent valve
Affected systems
Silnik spalinowyUkład odparowania paliwa (EVAP)
Related codes
P0442Niski
System EVAP — wykryto mały wyciek
Układ napędowy
Sprawdź szczegóły →P0440Niski
System EVAP — usterka ogólna
Układ napędowy
Sprawdź szczegóły →Tags and synonyms
Does code P0456 require professional diagnostics?
The code alone is not enough. To find the cause, you need to read live data, check freeze frame conditions, and compare with vehicle behavior. Book a diagnostic session.