Investigating P0455 on Your 2022 Volkswagen Golf GTI
A P0455 on your 2022 Golf GTI (Mk8) means a large EVAP leak. Your 2.0L turbo EA888 producing 241 hp is unaffected—this is a vapor system code. Gas cap first.
Evidence
- Check engine light on
- P0455 stored in ECM
- Possible fuel smell
- Gas cap issue
Causes Ranked
- Gas Cap Seal (Very High Likelihood): Loose or worn. $0–$25.
- N80 Purge Valve (Medium Likelihood): VW's purge solenoid—a known EA888 companion issue. $130–$270 installed.
- EVAP Leak Detection Pump (Medium Likelihood): VW LDP. $210–$400 installed.
- Fuel Tank Vent Valve (Low-Medium Likelihood): Seal failure. $160–$320 installed.
- Vapor Hose (Low Likelihood): Connection issue. $80–$210.
GTI-Specific Note
If your GTI has aftermarket intake or exhaust modifications, ensure all EVAP vacuum lines are properly connected. Modified GTIs sometimes disturb EVAP connections during installation.
Warranty
Your 2022 GTI is likely under VW's 4-year/50,000-mile warranty through 2026. Modifications may affect coverage. Federal emissions (8yr/80k) covers EVAP through 2030.
Safe to Drive?
Yes. P0455 doesn't affect the 2.0T, DSG or manual, or any performance.