Investigating P0456 on Your 2022 Compass
Your 2022 Compass (MP—refreshed with updated interior) has triggered P0456—a very small EVAP leak. The 2.4L Tigershark uses a Stellantis EVAP system with NVLD. Stellantis 3yr/36k warranty runs through 2025—check mileage.
Evidence
- Check engine light on
- P0456 stored
- No performance issues
- Gas cap may need reseating
Suspects
- Gas Cap Seal (High Likelihood): Loose or worn. $0 warranty or $10–$15.
- NVLD Sensor (High Likelihood): Standard failure point. $0 warranty or $110–$260.
- Purge Solenoid Valve (Medium Likelihood): 2.4L heat cycling. $0 warranty or $90–$220.
- EVAP Hose (Medium Likelihood): Connection aging. $110–$240.
- Charcoal Canister (Low Likelihood): Fuel overfilling. $180–$360.
Diagnostic Steps
- Reseat gas cap
- Check warranty—3yr/36k through 2025
- Dealer appointment if covered
- If expired, clear code, drive, smoke test if persistent
Costs
- Under warranty: $0
- Gas cap: $10–$15
- NVLD sensor: $110–$260
- Purge valve: $90–$220
Can I Drive?
Yes. P0456 has zero impact on the 2.4L, AWD, or safety.
Warranty
Stellantis 3yr/36k through 2025—check mileage. Federal emissions 8yr/80k covers EVAP through 2030.