Investigating P0441 on Your 2020 Subaru Impreza
A P0441 code on your 2020 Subaru Impreza indicates incorrect purge flow in the EVAP system. The Impreza uses a 2.0L boxer four-cylinder engine with symmetrical AWD — standard across all trims (sedan and hatchback). P0441 targets the purge circuit — the purge control solenoid and vacuum lines routing fuel vapors to the engine.
How the Code Sets
The ECM commands the purge control solenoid open during driving and monitors fuel tank pressure. When flow deviates from calibration, P0441 stores. After 4+ years, component wear is the primary concern.
Ranked Suspects
- Purge Control Solenoid Failure (35% likelihood) — The leading suspect. Part: $30–$70. Labor: $50–$110.
- Vacuum Line Deterioration (20% likelihood) — The 2.0L boxer is naturally aspirated with moderate heat output, but years of cycling degrade hoses. Repair: $10–$35. Labor: $25–$75.
- Vent Control Solenoid (15% likelihood) — Age-related wear. Part: $25–$75. Labor: $70–$155.
- Fuel Tank Pressure Sensor (10% likelihood) — Age-related drift. Part: $30–$75. Labor: $45–$100.
- Charcoal Canister (10% likelihood) — From overfilling. Part: $85–$240. Labor: $70–$150.
- Gas Cap Seal (5% likelihood) — Check seal. Replace: $8–$15.
- Wiring/Connector (5% likelihood) — Corrosion from underbody moisture.
Warranty & Emissions
Subaru's 3-year/36,000-mile warranty has expired. The 5-year/60,000-mile powertrain warranty may still apply depending on mileage. The federal emissions warranty (8 years/80,000 miles) covers specific EVAP components through approximately 2028. Check with your dealer.
DIY Repair
The purge control solenoid is accessible in the engine bay. The boxer layout creates unique access but it's a moderate DIY job. The Impreza shares its platform with the Crosstrek, so repair procedures are similar.
Repair Costs
Purge solenoid: $80–$180. Vacuum lines: $35–$110. Vent solenoid: $95–$230. FTP sensor: $75–$175. Charcoal canister: $155–$390.