Honda Error Code P1457: How to Fix It
Medium 1-3 hours Medium Severity
Verified June 2026
- Error Code
- P1457
- Brand
- Honda
- Product Type
- automotive
- Severity
- Medium
- DIY Difficulty
- Medium
- Estimated Fix Time
- 1-3 hours
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Tools You'll Need
- OBD2 scanner
- Basic hand tools
- Multimeter
- EVAP smoke machine (if available)
- Jack and jack stands
- Work light
How to Fix Error Code P1457
-
Connect OBD2 scanner and verify code
Ensure the engine is off and the vehicle is in park with the parking brake engaged before connecting the scanner. -
Visually inspect the EVAP canister
Allow the vehicle to cool completely before working under it. Use jack stands if lifting the vehicle. -
Check EVAP hoses and connections
-
Test the canister vent valve
Be careful when applying voltage to electrical components. Ensure proper polarity and use appropriate test equipment. -
Perform smoke test if necessary
Only use approved EVAP smoke testing equipment. Never use cigarette smoke or other harmful substances. -
Clear codes and test drive
Parts You May Need
EVAP vacuum hoses
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EVAP canister vent valve
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EVAP charcoal canister
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Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
EVAP vacuum hoses
Check Price on Amazon
EVAP canister vent valve
Check Price on Amazon
EVAP charcoal canister
Check Price on Amazon
Fuel cap
Check Price on Amazon
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When to Call a Professional
Call a professional mechanic if you cannot locate the source of the leak after visual inspection, don't have access to an EVAP smoke machine, or if the canister itself needs replacement (which may require fuel tank removal). Also seek professional help if multiple EVAP codes are present or if you're uncomfortable working under the vehicle.Frequently Asked Questions
Can I drive my Honda with P1457 code?
Yes, you can drive with P1457 code as it doesn't affect engine performance or safety. However, you should repair it promptly as it causes increased emissions and may prevent passing emissions testing.
How much does it cost to fix Honda P1457?
Repair costs typically range from $50-$400. Simple hose replacement costs $50-$100, while EVAP canister replacement can cost $200-$400 depending on labor rates and part prices.
What causes Honda P1457 error code?
P1457 is most commonly caused by cracked or loose EVAP hoses, a faulty canister vent valve, damaged EVAP canister, or loose gas cap. Age and heat exposure often cause rubber components to deteriorate.
Will P1457 cause my Honda to fail emissions test?
Yes, P1457 will likely cause your vehicle to fail emissions testing since it indicates the EVAP system isn't properly containing fuel vapors. The code must be repaired and cleared before retesting.
How do I prevent Honda P1457 from returning?
Ensure your gas cap is properly tightened after refueling, avoid overfilling the fuel tank, and have EVAP system hoses inspected during regular maintenance. Replace aging vacuum hoses before they crack.