Solving P0455 on Your 2016 Toyota Camry
A P0455 on your 2016 Toyota Camry means the EVAP system found a large leak. As a 7th-generation Camry (XV50), your car is out of all warranty coverage—but the most common fix is a $15 gas cap. This is one of the most DIY-friendly codes you'll encounter.
What You'll Notice
- Check engine light with P0455
- Fuel odor near the gas cap or rear
- Visibly worn or cracked gas cap seal
- Failed emissions inspection
Causes Ranked
- Gas Cap Seal (Very High Likelihood): After 8–10 years the rubber seal is worn. $10–$20 for OEM Toyota replacement.
- Canister Close Valve (CCV) (Medium Likelihood): Age-related valve failure. $130–$220 installed, or $50–$80 DIY parts.
- Deteriorated EVAP Hoses (Medium Likelihood): Rubber hoses crack from years of heat. $80–$200.
- Purge VSV (Low Likelihood): Vacuum switching valve failure. $100–$200.
- Fuel Filler Neck Gasket (Low Likelihood): Seal degradation. $80–$180.
DIY Repair Path
Start with a new OEM gas cap ($10–$20). Clear the code with an OBD-II scanner. If P0455 returns after 2–3 drive cycles, inspect EVAP hoses for cracks. The CCV is near the charcoal canister by the fuel tank—accessible with basic hand tools. For hidden leaks, a smoke test at a shop costs $100–$150.
No Warranty Coverage
Both Toyota's basic warranty and the federal emissions warranty (8 years/80,000 miles) have expired for your 2016 Camry. All repairs are out-of-pocket.
Expected Costs
Gas cap: $10–$20. CCV: $130–$220 at a shop, $50–$80 DIY parts. Hose: $80–$200. Most owners spend under $100 since the gas cap usually fixes it.
Safe to Drive?
Yes. P0455 has no effect on the Camry's 2.5L or 3.5L V6 engine performance.