p1457
Moderate
Honda · SUVs
EVAP Emission Control System Leakage - EVAP Canister System
Quick Answer
Error code P1457 on your Honda SUVs means: EVAP Emission Control System Leakage - EVAP Canister System. This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
  1. Cracked or deteriorated EVAP hoses at the canister
  2. Faulty EVAP canister vent shut valve
  3. Damaged or fuel-saturated charcoal canister
  4. Loose or disconnected vapor lines at the fuel tank
  5. Cracked fuel filler neck or damaged fuel cap seal
How to Fix It
1
Perform a smoke test on the EVAP system starting at the charcoal canister to identify leak points
2
Inspect all EVAP hoses and connections near the canister for cracks, dry rot, or loose clamps
3
Test the canister vent shut valve by applying vacuum while energized; it should hold vacuum
4
Check the charcoal canister for fuel saturation; replace if fuel or liquid is present
5
Inspect the fuel filler neck and fuel cap seal for cracks or deterioration
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
Parts You May Need
EVAP canister vent shut valve
Charcoal canister
EVAP hoses and clamps
Fuel filler cap
Related Error Codes
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