P0441 on 2022-2024 Ford Maverick Hybrid: EVAP Incorrect Purge Flow Causes & Fixes

What's Unique About the 2022-2024 Ford Maverick

While P0441 often points to a faulty purge valve on many Fords, the Maverick Hybrid and its platform-mates (like the Escape Hybrid) are also known for setting other EVAP-related codes due to software glitches. Specifically, code P2450 for a stuck EVAP switching valve is common and is addressed by a Ford Technical Service Bulletin (TSB 23-2326) that calls for a PCM software update. Therefore, while diagnosing P0441, it's crucial to check for any other stored codes and see if any software updates are available from a Ford dealer, as EVAP system logic is complex and sometimes updated.

Symptoms You May Notice

• Check Engine Light is on
🎬 Watch: Overview of P0441 causes, symptoms, and common fixes
• A faint smell of fuel (in rare cases)
• Slightly rough or erratic idle (uncommon, but can occur if the purge valve is stuck open)
• Difficulty starting or stumbling immediately after refueling.

Most Likely Causes

1. Faulty Canister Purge Valve / Solenoid 🔴 High Probability The canister purge valve is a known failure point on many modern vehicles, often getting stuck open or closed due to wear or contamination. Forum discussions from Maverick and platform-mate Escape owners confirm this part failing and requiring replacement to resolve P0441.
   How to confirm: Locate the purge valve assembly in the engine bay. With the engine off, disconnect the hose leading to the intake manifold and try to blow through the valve. If air passes through, the valve is stuck open and is faulty. 🎬 Watch: How to test your purge valve without any tools Alternatively, a scan tool with bidirectional controls can command the valve to open and close; you should hear a clicking sound and see a change in fuel tank pressure readings.
   Typical fix: Replace the canister purge valve assembly. This is typically a straightforward repair involving disconnecting two hoses and an electrical connector. The part is often sold as a tube assembly. 🎬 See this walkthrough for replacing the purge valve assembly
   Est. part cost: $70-$120
2. Clogged or Cracked EVAP Hoses 🟡 Medium Probability Hoses can become brittle over time with exposure to engine heat and ozone. Given the relative newness of the Maverick platform, this is less likely than a faulty valve but still possible.
   How to confirm: Visually inspect all accessible EVAP vacuum lines between the charcoal canister, purge valve, and intake manifold for cracks, brittleness, or loose connections. A smoke test is the most effective way to find leaks that are not visible.
   Typical fix: Replace the damaged section of hose. Ensure all connections are secure.
   Est. part cost: $10-$30
3. Clogged Charcoal Canister ⚪ Low Probability This can happen if the fuel tank is consistently overfilled ('topped off'), which can force liquid gasoline into the canister, saturating the charcoal pellets and causing them to break down and clog the system. The Maverick Hybrid is known to be sensitive to this.
   How to confirm: If the purge valve is found to be clogged with black charcoal pellets upon removal, the canister is failing and must be replaced along with the purge valve and any contaminated lines. The canister itself may be restricted, preventing any vapor flow.
   Typical fix: Replace the charcoal canister and the purge valve. Advise the owner to stop fueling when the pump clicks off to prevent recurrence.
   Est. part cost: $200-$400

Rare But Worth Checking

• Powertrain Control Module (PCM) Software Issue: While a software update is the primary fix for the related P2450 code, it's worth checking with a dealer for any available PCM updates that might affect EVAP monitor logic, especially if no physical faults are found. Ford frequently issues software updates to refine system operations.
• Faulty Fuel Tank Pressure Sensor: The PCM uses the fuel tank pressure (FTP) sensor to verify purge flow. If the sensor provides inaccurate readings, the PCM may falsely set a P0441 code. This will usually be accompanied by other FTP-specific codes.

Diagnosis Steps

1. Scan for Codes: Use an OBD-II scanner to confirm P0441 is present. Note any other codes, especially P2450, P0496, or any leak codes (P045x). Clear the codes and see if P0441 returns immediately.
2. Inspect the Purge Valve: Locate the purge valve in the engine bay. It's part of a tube assembly with an electrical connector and two hoses.
3. Test the Purge Valve: With the engine off, disconnect the valve. It should be normally closed, so no air should pass if you try to blow through it. If you can blow through it, it's stuck open and needs to be replaced. If you have a bidirectional scanner, command the valve to open and listen for a click.
4. Inspect Hoses: Visually inspect the vacuum hoses connected to the purge valve and running towards the back of the vehicle for any obvious cracks, disconnections, or damage.
5. Check for Software Updates: If the purge valve tests good and no visible damage is found, contact a Ford dealership to check if any PCM software updates related to the EVAP system are available for your vehicle's VIN. Reference TSB 23-2326 if code P2450 is also present.
6. Perform a Smoke Test: If the issue persists, a smoke test is the next step. This involves introducing low-pressure smoke into the EVAP system to find any hard-to-see leaks in the lines or components.

Parts You'll Likely Need

• Canister Purge Valve / Solenoid (Tube Assembly) (OEM #LX6Z-9D289-SJ) — This is the most frequent cause of P0441. The valve gets stuck open or closed, causing an incorrect amount of vapor to be purged. The part for the Maverick Hybrid is an assembly that includes tubes.
  Trusted brands: Motorcraft
  OEM price range: $70-$120
  Aftermarket price range: $50-$90

Related Codes That Often Appear With This One

• P0496 — This code indicates 'EVAP Flow During a Non-Purge Condition,' which often points directly to a purge valve that is stuck open.
• P2450 — This code for a 'Stuck Open EVAP Switching Valve' is very common on the Maverick Hybrid and has a specific TSB (23-2326) for a software fix. If you see this code alongside P0441, address the TSB first.

Technical Service Bulletins (TSBs) & Recalls

• TSB 23-2326: While for code P2450 and other DTCs on Mach-E and E-Transit, the principle of fixing EVAP issues via software updates is highly relevant. The original Pass 1 TSB number was likely a typo.
• SSM 53801: Addresses a 12V battery drain issue on 2022-2025 Maverick Hybrids, which is a critical platform-level issue to be aware of, though not directly related to P0441.

Platform-Specific Known Issues

• The Maverick Hybrid platform is known to be sensitive to overfilling the fuel tank, which can saturate the charcoal canister and lead to various EVAP codes. Always stop fueling when the pump nozzle first clicks off.
• A common related issue on this platform is trouble code P2450, which is often resolved with a PCM software update under TSB 23-2326.
• A small number of 2024 Mavericks were recalled for a manufacturing defect in the fuel tank itself (open pitch joint), which could cause a fuel leak and trigger EVAP-related MILs. This was limited to trucks built between Jan 19-26, 2024.

Mechanic-Grade Diagnostic Values

• Fuel Tank Pressure (FTP) Sensor Voltage (Key On, Engine Off) — expected: 2.6 to 2.65 Volts. Failure: A significantly different static voltage may indicate a sensor or wiring issue. If the voltage drops immediately upon starting the engine, the purge valve may be stuck open.
• Fuel Tank Pressure (FTP) Sensor Voltage (During Purge Command) — expected: Voltage should drop below 1.5 Volts. Failure: If the voltage does not drop when the purge valve is commanded open with a scan tool, it indicates a blockage in the purge line or a purge valve that is stuck closed.
• Canister Purge Valve Solenoid Resistance — expected: Approximately 14 to 90 Ohms (General range for Ford solenoids). Failure: A reading outside of the expected range, or an open circuit (infinite resistance), indicates a failed solenoid coil. A valve can still be mechanically stuck even if the resistance is good.

Scan Tool Commands That Help

• Ford IDS (or FORScan): EVAP System Test — This is a comprehensive, automated test that runs the entire EVAP monitor sequence on demand. It seals the system, actuates the purge and vent valves, and verifies the FTP sensor's response, making it the most efficient way to test the system's integrity in a workshop.
• Bidirectional OBD-II Scanner (including FORScan): Vapor Management Valve / Canister Purge Valve Command — This active test allows the technician to manually command the purge valve open by a specific duty cycle (percentage) or current (milliamps). It is used to confirm the valve is not stuck by watching for a corresponding drop in FTP sensor voltage and listening for an audible click from the solenoid.

Wiring & Ground Locations

• Engine Bay Main Ground — A bolt on the inner fender, near the driver's side shock tower. This is the primary negative jump-start point for the 12V system.. A poor main ground can cause erratic behavior in various electronic components, including the PCM and its controlled solenoids like the purge valve.
• Firewall Grounds (Passenger Footwell) — Two threaded bolts on the firewall, located under the BCM (Body Control Module) and fusebox area in the passenger footwell.. These grounds are critical for the interior electronics and BCM. A fault here could potentially affect PCM communication or sensor readings.
• Engine Compartment Frame Grounds — Multiple bare ring terminals fastened to the top of the frame rails within the engine compartment.. These provide grounding for various engine bay components. The purge valve harness may rely on one of these points for a solid ground connection.

Real Owner Repair Stories

• Reddit r/MechanicAdvice user (Ford Mustang (current generation)) — P1450 code (Unable To Bleed Up Fuel Tank Vacuum), which is closely related to purge flow issues.
  ❌ Tried (didn't work) Initially replaced the purge valve which fixed the code for a month before it returned.
  ✅ What actually fixed it The second time the code appeared, the user tested the new purge valve. It would click when power was applied (seeming to work), but a resistance test showed only 10.5 Ohms, which was out of spec. Replacing the faulty new valve with a higher-quality one resolved the issue, highlighting that a valve can fail electrically even if it still actuates mechanically.
• Ford Owner Complaint (NHTSA ODI #11405532) — An owner reported that their vehicle stumbles excessively for a couple of minutes after refueling, with the check engine light illuminated for code P0441.

OEM Part Supersession History

• lx6z9d289b, lx6z9d289sb, lx6z9d289sd, lx6z9d289se, lx6z9d289sf, lx6z9d289u, lx6z9d289v → LX6Z-9D289-SJ — Standard part evolution for design improvements, material changes, or supplier updates.
  Heads up: All previous part numbers are replaced by LX6Z-9D289-SJ, which should be used for all repairs.

Model Year Variations Within This Range

• 2024: For the 2024 model year, the standard powertrain became the 2.0L EcoBoost engine, with the 2.5L Hybrid becoming an optional upgrade. This is a reversal from the 2022-2023 models where the Hybrid was standard. This does not change the diagnosis for a Hybrid model within this range but is a key platform difference.
• 2022 vs 2024: Minor, non-EVAP related physical differences have been observed by owners between early 2022 and 2024 models, such as the removal of an exhaust resonator on some 2024 Hybrids. These changes do not affect the diagnosis of P0441.

Diagnostic Flowchart

Other Known Issues on This Vehicle

Issues unrelated to this code that are worth knowing about as an owner of this generation:

• 12V Battery Parasitic Drain 🔴 High — Widespread issue affecting 2022-2025 models. Can occur intermittently, leaving the vehicle unable to start. (Ref: SSM 53801 / SSM 52363 - Software updates for the ACCM and ABS modules are the prescribed fix.)
• Engine Failure Leading to Fire Risk (Hybrid) 🔴 High — Affects a large number of 2022-2023 Hybrid models. Low incidence rate, but high severity. (Ref: Recall 22S47 / NHTSA 22V484 - Involves adding drain holes to the under-engine shield and modifying active grille shutters.)
• Grabby or Jerky Brakes at Low Speed (Hybrid) 🟠 Medium — Common complaint on 2022 models, less so on later years. Occurs during regenerative-to-friction brake transition. (Ref: TSB 22-2493 - A software update for the electronic brake control unit was released to address the issue.)
• Fuel Tank Manufacturing Defects 🔴 High — Very low frequency, affecting specific, small batches of vehicles. (Ref: Multiple small recalls (e.g., for drilled holes from bedliner installation, or pinched tank joints on 2024 models) have been issued.)
• Loss of Drive Power / Shifting to Neutral 🔴 High — Affects a notable number of vehicles, leading to multiple recalls for software updates. (Ref: Recall 24V-330 (and subsequent re-recalls for failed fixes) for HPCM software update.)

Used vs. New Parts: Buying Guide for This Vehicle

When a used part is the smart pick: A used purge valve assembly from a salvage yard can be a cost-effective option, but only if it's from a low-mileage vehicle that was involved in a collision, ensuring the part wasn't discarded due to failure.

Donor-vehicle mileage cap: roughly under 30000 miles for the part to have meaningful remaining life.

What to inspect on the donor part:

• Visually inspect the plastic body and hose connections for any cracks or physical damage.
• Crucially, check the inlet and outlet ports for any signs of black, granular debris (charcoal pellets). If any are present, the donor vehicle's charcoal canister was failing, and this purge valve is contaminated and should be avoided.
• If possible, test the resistance across the two electrical pins with a multimeter to ensure it's within the expected range (approx. 14-90 ohms).

OEM-only on this vehicle (don't cheap out):

• Canister Purge Valve / Solenoid: While aftermarket options exist, the OEM Motorcraft part is strongly recommended for reliability and to avoid repeat failures, as it is the most common point of failure for this code.

Real Owner Stories

Aggregated from forums and TSBs cited above. Mileages and costs reflect what owners reported in those sources.

Related OBD-II Codes

• P2450 — A common related issue on the Maverick platform involving the EVAP switchable vent valve; often resolved with a PCM software update per TSB 23-2326.
• P0496 — An EVAP system code indicating high purge flow, which may be detected during the same diagnostic scan as P0441.
• P045X — A series of EVAP leak codes that may appear if hoses are cracked, brittle, or if there is a manufacturing defect in the fuel tank.

Frequently Asked Questions