P0455
EVAP System Leak Detected - Large Leak
P0455 is an OBD-II diagnostic trouble code meaning: EVAP System Leak Detected - Large Leak. Common causes: damaged or loose fuel cap, cracked or damaged evap hoses. Estimated repair cost: $56–167.
Symptoms
- Check Engine light comes on
- Smell of gasoline in or around the car
- Deteriorating fuel economy
Causes
- Damaged or loose fuel cap
- Cracked or damaged EVAP hoses
- EVAP purge valve malfunction
- Damage to the fuel tank
- Fuel tank pressure sensor malfunction
How to Fix
- Check and tighten the fuel cap
- Inspect the EVAP system hoses for damage.
- Check the EVAP system purge valve
- Perform a leak test on the EVAP system
- Replace damaged components
Related codes
Error P0455 by Vehicle Brand
FAQ
What does the P0455 code mean?
P0455 is an OBD-II diagnostic trouble code that indicates: EVAP System Leak Detected - Large Leak
What causes a P0455 error code?
The most common causes of P0455 include: Damaged or loose fuel cap; Cracked or damaged EVAP hoses; EVAP purge valve malfunction; Damage to the fuel tank.
How do I fix a P0455 diagnostic trouble code?
To fix P0455: Check and tighten the fuel cap. Inspect the EVAP system hoses for damage.. Check the EVAP system purge valve. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P0455?
Limited driving only, diagnose soon
How much does it cost to fix P0455?
The estimated repair cost for P0455 is $56–167. Actual cost depends on your vehicle, location, and labor rates.
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