No recalls found in NHTSA database for 2021-2024 Nissan Rogue (based on the provided data). The dataset includes one owner complaint for a different code (P0301) and does not list any P0440-specific issues or recalls. The guide below uses general automotive knowledge tailored to the 2021-2024 Nissan Rogue, but it is not a Nissan service bulletin. If you need official TSBs or recalls, check with NHTSA or Nissan directly.
CODE MEANING AND SEVERITY
- Code: P0440 — Evaporative Emission Control System Malfunction
- What it means: The vehicle's evaporative emission control (EVAP) system has a general fault or inability to operate within normal parameters. The EVAP system prevents fuel vapors from escaping the fuel system into the atmosphere. A P0440 indicates the PCM detected a fault somewhere in the system (not necessarily one specific component).
- Severity: Moderate. The MIL (check engine light) may stay ON, and the vehicle may fail an emissions test. In some cases, the vehicle will run normally, but the EVAP monitor may not complete during a drive cycle. Fuel economy can be affected indirectly if the engine compensates for a lean/ rich condition caused by an EVAP fault.
COMMON CAUSES ON NISSAN ROGUE (2021-2024)
- Loose, damaged, or missing gas cap
- Cracked or disconnected EVAP hoses, lines, or fittings (especially around the fuel tank, filler neck, or engine bay)
- Faulty EVAP purge valve (solenoid) or a stuck/ sluggish valve
- Faulty EVAP vent valve (if equipped in the system)
- Leaks in the charcoal canister or around the fuel tank area
- Faulty canister pressure sensor or PCM wiring/ground issues
- Cracked or damaged fuel tank or filler neck (rare but possible)
- Electrical wiring or connector corrosion/loose pins in EVAP circuitry
- Less common: PCM software issue or the need for an updated calibration
SYMPTOMS
- Check Engine Light (MIL) illuminated or flashing, depending on the monitor status
- Emissions-related symptoms or pending/multiple EVAP-related codes
- Possible fuel vapor smell around the vehicle
- Possible rough idle or drivability changes in rare cases if the purge occurs during certain operating conditions
- Emissions test fail in states requiring testing
Note: The dataset provided does not list P0440-specific symptoms; the above are typical EVAP-related observations for modern vehicles, including the Rogue.
DIAGNOSTIC STEPS
- Step A: Verify and document
- Use an OBD-II scanner to confirm P0440 is present and check for any additional codes (P0441, P0442, P0443, P0444, P0455, P0456, etc.).
- Review freeze-frame data and EVAP readiness monitors to assess how the system behaved during the fault.
- Step B: Inspect the obvious
- Check the gas cap: ensure it is snug, not cracked, and the gasket is in good condition. If it’s old or damaged, replace with an OEM or equivalent cap and clear the code if no other faults exist.
- Inspect visible EVAP hoses, lines, and connectors for cuts, cracks, disconnections, or signs of heat damage. Pay special attention to the fuel tank vent lines and filler neck area.
- Step C: Perform a leak test
- Perform a smoke test on the EVAP system to locate any leaks in hoses, lines, canister, or fittings. This is the most reliable way to find EVAP leaks.
- If a smoke machine is unavailable, a hand-held EVAP pressure/ vacuum test can identify leaks, but it’s less definitive.
- Step D: Check purge and vent valves
- With a scan tool, command the purge valve to open/close while observing the EVAP system pressure and fuel trim behavior. A valve that doesn’t open/close properly can cause P0440.
- Check the vent valve (if equipped) for proper operation and electrical circuit integrity (wiring, grounding, fuses).
- Step E: Inspect electrical circuits
- Inspect the power supply, grounds, and wiring to the purge and vent valves. Look for damaged insulation, corroded pins, or loose connectors.
- Check for CVT/engine control module software updates or calibrations that may address EVAP monitor issues (ask a Nissan dealer about current TSBs or software updates).
- Step F: assess the canister and sensor
- Inspect the charcoal canister for damage or saturation; if contaminated or damaged, replacement may be required.
- If equipped with a canister pressure sensor, test its signal and verify wiring integrity.
- Step G: Rule out secondary causes
- If no leaks are found and all valves test OK, consider PCM wiring, ground connections, or software-related issues. In rare cases, a calibration update may be required.
RELATED CODES
- P0440 Evaporative Emission Control System Malfunction (parent code)
- P0441 Evaporative Emission Control System Incorrect Purge Flow
- P0442 Evaporative Emission Control System Very Small Leak Detected
- P0443 Evaporative Emission Control System Purge Flow
- P0444 Evaporative Emission Control System Purge System
- P0455 Evaporative Emission Control System Leak Detected (Gross Leak)
- P0456 Evaporative Emission Control System Very Small Leak (often associated with gas cap or hoses)
- P0457 Evaporative Emission Control System Leak Detected (fuel cap)
REPAIR OPTIONS AND COSTS (2025 PRICES)
Prices vary by region, shop, and whether vaguer components (like the canister) are involved. The ranges below reflect typical U.S. repair costs as of 2025.
Gas cap replacement
- Parts: $5–$40
- Labor: $30–$60
- Total: $40–$100
- Notes: Most common, inexpensive fix if the cap was the culprit or the cap’s seal was degraded.
EVAP purge valve (solenoid) replacement
- Parts: $40–$150
- Labor: $100–$250
- Total: $140–$400
- Notes: Common cause for P0440; a sticking or failed purge valve can trigger the code.
EVAP vent valve replacement
- Parts: $40–$150
- Labor: $100–$240
- Total: $140–$390
Charcoal canister replacement
- Parts: $150–$450
- Labor: $200–$600
- Total: $350–$1,050
- Notes: More expensive; may be necessary if the canister is saturated or physically damaged.
EVAP hose/line repair or replacement
- Parts: $20–$150 (depends on length and weathered components)
- Labor: $80–$240
- Total: $100–$380
EVAP system diagnostic smoke test
- Parts: minimal
- Labor: $60–$120
- Total: $60–$120
- Notes: Helpful to pinpoint leaks; often billed as a diagnostic service.
PCM/software update (if required)
- Parts: $0
- Labor/Software: $100–$300
- Total: $100–$300
Combined repairs (if multiple issues found)
- Example: gas cap + purge valve replacement
- Total: $180–$500 or more depending on parts and labor
Important note: If a leak is found in the EVAP system, repairing the leak usually resolves P0440. If no leaks are found but the fault persists, a software update or PCM-related issues may be involved, which could require dealer intervention.
DIY VS PROFESSIONAL
- Do-it-yourself (easy, low-cost):
- Replace a faulty gas cap (most common and straightforward)
- Visually inspect hoses and fittings for obvious damage
- If you have an EVAP test tool, you can perform a basic purge valve test
- Professional (recommended for most EVAP work):
- Smoke test to locate leaks
- Thorough EVAP system pressure testing and monitoring with proper tools
- EVAP purge/vent valve testing with scan tool
- Canister replacement or complex hose repairs
- Wiring and PCM/software updates
- Safety considerations:
- EVAP work involves gasoline vapors and pressurized systems; use proper PPE and work in a ventilated area.
- If you’re unsure, seek professional service. A persistent P0440 without an obvious leak can be time-consuming to diagnose and may require dealer-level diagnostics.
PREVENTION
- Gas cap hygiene
- Always tighten the gas cap until you hear a click. Replace a cracked or worn cap.
- Avoid overfilling the tank; stop after the automatic shutoff to reduce vapor pressure.
- Regular driving and monitor completion
- Ensure the EVAP monitors complete during normal driving cycles. Short trips can prevent the monitor from finishing, causing misinterpretations of the system’s health.
- Inspect EVAP lines and connections
- Periodically inspect hoses for wear, cracks, or obvious damage, especially near the fuel system area and underbody where road debris or heat can cause deterioration.
- Fuel quality and handling
- Use good-quality fuel and avoid contaminating the fuel system with poor fuel or contaminated gas.
- Rodent prevention
- In some climates, rodents chew EVAP hoses. Keep the engine bay clean and consider protective measures if the vehicle sits for extended periods.
- Timely diagnostics
- If the check engine light comes on, diagnose promptly. Minor leaks can grow into larger or more costly issues over time.
- Drive cycles
- After repairs, perform multiple short and long drives to allow EVAP monitors to complete and verify that the code does not return.
Bottom line
- P0440 on a 2021-2024 Nissan Rogue indicates an Evaporative Emission Control System malfunction. The most common causes are a faulty gas cap, leaks in EVAP hoses or the charcoal canister, or a failed purge/vent valve. Start with the gas cap, then perform a smoke test or other leak-detection process to pinpoint the issue. If you’re not equipped to perform these checks, consult a qualified technician. Given the data provided, there are no NHTSA-listed recalls for this code in the Rogue (2021–2024) in the supplied dataset. If you need official updates or TSBs, verify with Nissan or NHTSA directly.