P1457 — EVAP Control System Leakage (EVAP Canister System)
SAFEIs it safe to drive? Generally OK to keep driving — fix it at your convenience.
What P1457 means
This is a manufacturer-specific code — its meaning depends on the vehicle’s make (see below).
What P1457 means on specific makes
Honda / Acura SAFE
The PCM detected an evaporative emissions leak traced to the canister side of the EVAP system. Emissions/leak code only — drives fine, but will fail emissions and may cause a fuel smell.
- Cracked/disconnected EVAP hoses or canister ($20-150)
- Faulty canister vent valve
- Leaking two-way valve
Check first: Smoke-test the EVAP system focusing on the charcoal canister, vent valve, and hoses under the car. P1456 is the same leak on the fuel-tank side.
Source: hondacodes.wordpress.com, carparts.com