Infiniti Error Code P0455: How to Fix It

Q: Can I drive my Infiniti with code P0455?

Yes, you can safely drive with code P0455 as it doesn't affect engine performance or safety. However, you should address it promptly as it may cause emissions test failure and the check engine light will remain on.

Q: How much does it cost to fix P0455 on an Infiniti?

Repair costs vary widely depending on the cause. A loose gas cap costs nothing to fix, while a faulty EVAP canister replacement can cost $300-800. Most common fixes like replacing purge valves or hoses cost $100-300.

Q: Will P0455 cause my Infiniti to fail emissions testing?

Yes, code P0455 will typically cause your vehicle to fail emissions testing since it indicates the EVAP system isn't properly containing fuel vapors. You'll need to fix the issue and clear the code before retesting.

Q: How often should I replace my Infiniti's gas cap?

Gas caps typically last 50,000-100,000 miles. Replace yours if you notice cracks in the rubber seal, if it doesn't click when tightening, or if it triggers EVAP codes repeatedly despite appearing intact.

Abstract

Error code P0455 in your Infiniti indicates a large leak detected in the Evaporative Emission (EVAP) system, which prevents fuel vapors from escaping into the atmosphere. While this won't affect your vehicle's drivability, it can cause your check engine light to illuminate and may lead to failed emissions tests.