P0456 on Your 2022 Volvo S60
A P0456 code on your 2022 Volvo S60 means the ECM has detected a very small leak (0.020-inch equivalent) in the EVAP system. Built on Volvo's SPA platform, the S60 uses a 2.0L four-cylinder in B5 or T8 Recharge PHEV configuration, sharing the same gasoline EVAP system.
Common Causes
- Gas cap seal wear (33%) — Three years of use degrades the seal.
- Purge valve seepage (23%) — Volvo's purge solenoid can develop slight leaks.
- EVAP line deterioration (18%) — Heat from the turbo engine affects vapor lines.
- Canister shut-off valve issue (13%) — Vent control wear.
- Charcoal canister damage (8%) — Road debris.
- Fuel tank seal (5%) — Slow degradation.
Diagnostic Steps
- Gas cap test — New OEM cap ($15–$35), clear code, monitor.
- Smoke test — Professional diagnosis.
- VIDA diagnostics — Volvo dealer tool.
- Component testing — Valve checks.
Repair Costs
- Gas cap: $15–$35 (DIY)
- Purge valve: $170–$370
- Canister shut-off valve: $180–$380
- EVAP hose repair: $100–$250
- Charcoal canister: $280–$550
Warranty
Your 2022 S60 is covered under Volvo's 4-year/50,000-mile warranty through 2026 and federal emissions for 8 years/80,000 miles through 2030.