Tracking Down P0455 on Your 2019 Honda CR-V
A P0455 on your 2019 Honda CR-V signals a large EVAP system leak. Your 5th-generation CR-V is out of basic warranty, but the federal emissions warranty likely still covers this repair. Start with the gas cap—it's the most common cause and cheapest fix.
What You'll Find
- Check engine light with P0455 code
- Possible fuel odor near the gas cap area
- Gas cap seal worn after 5–6 years
- Failed emissions test
Causes by Likelihood
- Gas Cap Seal (Very High Likelihood): Worn rubber seal after 5–6 years. $10–$25 for OEM replacement.
- Canister Vent Shut Valve (Medium Likelihood): Honda's vent valve sticking open with age. $150–$250.
- EVAP Hose Deterioration (Medium Likelihood): Cracked rubber vapor lines. $80–$200.
- Bypass Solenoid Valve (Low Likelihood): Honda-specific EVAP valve. $120–$220.
- Charcoal Canister (Low Likelihood): Saturated from repeated fuel overfilling. $200–$350.
Diagnostic Path
Replace the gas cap first ($10–$25). Clear the code and drive 2–3 cycles. If P0455 returns, visit a shop for a smoke test to locate the leak precisely.
Warranty Status
Honda's basic warranty has expired. The federal emissions warranty (8 years/80,000 miles) covers EVAP through 2027. Call your dealer to check—you may qualify for a free repair.
Repair Costs
Gas cap: $10–$25. Vent shut valve: $150–$250. Hose: $80–$200. Most P0455 repairs on the CR-V total under $250.
Safe to Drive?
Yes. P0455 is a vapor leak with no impact on the 1.5T engine or AWD system performance.