Investigating P0441 on Your 2020 Nissan Maxima
A P0441 code on your 2020 Nissan Maxima indicates incorrect purge flow in the EVAP system. The Maxima uses a 3.5L VQ35DE V6 producing 300 hp — Nissan's flagship sedan powertrain. P0441 targets the purge circuit — the PVCV (Purge Volume Control Valve) and vacuum lines routing fuel vapors from the charcoal canister to the engine.
How Nissan Tests Purge Flow
The ECM commands the PVCV open during driving and monitors the fuel tank pressure sensor. Nissan's active leak detection pump runs additional integrity checks. When purge flow deviates from calibration, P0441 stores. After 4+ years of service, component wear is the primary concern.
Ranked Suspects
- PVCV Failure (35% likelihood) — The top suspect. The VQ35DE generates substantial heat, accelerating purge valve wear. Part: $35–$85. Labor: $55–$120.
- Vacuum Line Deterioration (20% likelihood) — The VQ V6's heat output degrades rubber hoses over time. Inspect all purge circuit lines. Repair: $12–$40. Labor: $30–$85.
- Canister Close Valve (CCV) (15% likelihood) — Nissan's vent valve. Age-related wear. Part: $30–$85. Labor: $80–$170.
- Leak Detection Pump (10% likelihood) — Years of cycling wear the active testing pump. Part: $55–$130. Labor: $70–$140.
- Charcoal Canister (10% likelihood) — Saturation from overfilling. Part: $110–$280. Labor: $85–$175.
- Fuel Tank Pressure Sensor (5% likelihood) — Age-related drift. Part: $35–$85. Labor: $55–$110.
- Wiring/Connector (5% likelihood) — Corrosion on PVCV connector.
Warranty & Emissions
Nissan'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. Check with your dealer before paying out of pocket.
DIY Repair
The PVCV is accessible in the engine bay on the VQ35DE. It's a moderate DIY job. Full actuator testing requires Nissan CONSULT, but a basic OBD-II scanner can read and clear codes.
Repair Costs
PVCV: $90–$205. Vacuum lines: $42–$125. CCV: $110–$255. Leak detection pump: $125–$270. Charcoal canister: $195–$455.