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P0457

Evaporative Emission (EVAP) — Leak Detected (Fuel Cap Loose or Off)

Low — fix soonSafe to drive for now

Severity: Fix soon. Usually safe to drive for now.

What P0457 means

The computer detected a leak and the most likely cause is the fuel cap being loose or missing.

Common causes

How to fix it

Tighten or replace the gas cap, clear the code, and see if it returns.

Can I drive with P0457?

Safe to drive. Check the gas cap first — this code is almost always the cap.

Related codes

Questions, answered

Is it safe to drive with code P0457?

Generally safe to drive, but get it checked soon. Safe to drive. Check the gas cap first — this code is almost always the cap.

What causes code P0457?

The most common causes are: Loose or missing gas cap; Damaged gas cap seal; Cracked filler neck; Disconnected EVAP hose. A scan tool and a visual check of the parts above is where a technician starts.

How do I fix code P0457?

Tighten or replace the gas cap, clear the code, and see if it returns.

Not repair advice. This page gives general information about code P0457 only. Cars differ by make, model and year — confirm the fault with a scan tool and have the repair done by a qualified technician.

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