By Ezra Lane Your Nissan's P1444 code indicates a malfunction in the EVAP canister purge volume control solenoid valve, which could include faults in the valve itself, its electrical circuit, or related EVAP system leaks. This issue disrupts fuel vapors management, resulting in increased emissions and reduced fuel efficiency. You'll likely notice a check engine light, possible changes in drivability, or increased fuel consumption. To address this, you should inspect the valve, test it for electrical and mechanical functionality, and check the EVAP system for leaks. Repair costs can range from $200 to $470, largely depending on part costs and labor. Understanding these details can guide you toward ensuring optimal vehicle performance and compliance with emissions standards.
P1444 Nissan Code Meaning
The P1444 Nissan code indicates a malfunction in the purge volume control valve, part of the EVAP system.
It suggests issues like a faulty valve, electrical circuit problems, or EVAP leaks.
Inspect and potentially replace the valve or repair the circuit to resolve it.
Error Code P1444 Symptoms
If you see the P1444 error code in your Nissan, you might notice a few things. This code means there's something wrong with the EVAP canister purge valve, part of the system that controls fuel emissions.
Here's what you might experience:
- Check Engine Light: The check engine light on your dashboard will turn on. This happens when the car's computer finds the P1444 code, meaning something might be wrong with the EVAP system.
- High Fuel Use: Your car may use more fuel. The broken solenoid can mess up how fuel vapor is managed, making the engine burn more fuel for the same performance.
- Rough Idling: The car might idle roughly or stall. The EVAP system affects the mix of air and fuel going into the engine. If the solenoid is stuck, it can cause a bad mix, leading to rough idling.
These issues can change how your car drives and might cause bigger problems if not fixed.
Causes of Nissan P1444 Fault Code
If your Nissan shows the P1444 error code, several things might cause it. Knowing these can help you find the problem faster.
- Broken Purge Valve: This valve helps control fuel vapors from the tank to the engine. It can stop working if it gets damaged inside or clogged with dirt. If it doesn't work, it can't control the fuel vapors, causing the P1444 code.
- EVAP System Leak: The EVAP system controls emissions. If there's a leak, the code might appear. Check hoses connected to the EVAP canister or purge valve for cracks or loose parts. These problems let vapors escape and mess with the system's pressure.
- Blocked EVAP Canister: This canister holds fuel vapors. It can get blocked by dust or dirt. If it can't hold vapors well, the system doesn't work right, leading to the P1444 code.
Fixing these problems helps keep your car running well and staying within emission rules.
Tools Needed to Diagnose
To figure out what's wrong with the P1444 Nissan code, you'll need some specific tools. This code shows there's a problem with the EVAP canister purge volume control solenoid valve.
Here are the tools you need:
1. OBD-II Scanner
This tool reads codes from your car's computer. It helps you find the P1444 code and any other related codes.
2. Digital Multimeter
Use this to check the solenoid's resistance and voltage. Compare these readings to what the manufacturer says they should be to see if the solenoid is working right.
3. Smoke Machine
This helps find leaks in the EVAP system. Fill the system with smoke and watch where it escapes to find leaks that might be causing the P1444 error.
These tools help you check the EVAP system parts linked to the P1444 code. The scanner gives you the main diagnosis, while the multimeter and smoke machine let you check electrical and physical problems more closely.
How to Fix P1444 Nissan Error Code – Step by Step
Step 1:
Inspect the EVAP canister purge volume control solenoid valve for any signs of damage or wear.
Check for disconnections, corrosion, or damage in the wiring and connectors leading to the valve that could disrupt functionality.
Step 2:
Test the solenoid valve's operation using a multimeter.
Measure the resistance across the terminals; a healthy solenoid should show a resistance between 22 to 30 ohms.
If the readings differ significantly, replace the solenoid.
Step 3:
If the solenoid tests okay, check the EVAP system hoses and connections for leaks.
Utilize a smoke machine to identify any hard-to-see breaches.
Ensure all connections are tight and the hoses have no cracks or splits.
Step 4:
If all components appear intact, consider checking the vehicle's ECM software version.
Sometimes, a software update from Nissan can address specific issues related to the EVAP system.
Step 5:
After any replacements or repairs, clear the error code with an OBD-II scanner and take the vehicle for a test drive to ensure the issue is resolved.
If the code reappears, further diagnostics might be necessary.
Common Diagnosis Mistakes
When you're checking the P1444 error code in a Nissan, don't hurry through the EVAP system inspection. A quick glance might miss important details.
Here are three things to watch out for:
- Check All Parts: Don't just focus on the canister purge volume control solenoid valve. The EVAP system has many parts, and problems in any of them can cause this error. Look at everything.
- Do a Smoke Test: A smoke test can find leaks you mightn't see by just looking. If you skip this, you might miss what's really wrong.
- Look at Electrical Connections: The solenoid needs good electrical connections to work right. Loose wires or rusty connectors can make it act up. Check the wiring before deciding the solenoid is broken.
P1444 Nissan Repair Cost
If your Nissan is showing a P1444 error, you might be curious about the cost to fix it. The price can change based on where you live, your Nissan model, and the mechanic or dealership's labor rates.
Usually, fixing this issue means replacing the EVAP canister purge volume control solenoid valve.
Here's what you might expect:
- Part Cost: $150 – $320
- Labor Cost: $50 – $150
So, the total repair cost might be around $200 to $470. Ask a trusted mechanic for an exact quote. Some might charge a diagnostic fee, which can add to the cost.
Using Original Equipment Manufacturer (OEM) parts can raise the bill, but they often last longer than aftermarket options.
Aftermarket parts might save money but differ in quality and often come with shorter warranties.
Make sure you go to a mechanic who knows Nissan cars well. This helps avoid extra repairs and ensures the job is done correctly.
Related Error Codes on Nissan
When you're fixing your Nissan, the P1444 code is just one of many EVAP system error codes you might see. These codes can help you find problems that are linked or separate from each other in the EVAP system.
| Code | Description | Common Fixes |
|---|---|---|
| P0440 | Trouble with the EVAP System | Replace gas cap, fix leaks |
| P0441 | Wrong Purge Flow in EVAP | Check purge valve, fix hoses |
| P0442 | Small Leak Found in the EVAP System | Tighten or replace fuel cap, check hoses |
| P0446 | Problem with EVAP Vent Control Circuit | Replace vent control valve |
| P0455 | Big Leak Found in the EVAP System | Check and replace broken hoses, seal leaks |
Each code points to different issues, leading to different fixes. For example, codes like P0440 and P0455 often relate to leaks. These could be as easy to fix as tightening the gas cap or might need more work like replacing hoses. Knowing these codes helps you deal with the problems and fix them right.
Can I drive safely with P1444 Nissan?
You can still drive your Nissan with the P1444 code, but it's not the best idea.
This code means there's a problem with a part that helps control car emissions.
It's safe for now, but get it fixed soon to avoid bigger problems.
People Also Ask
How Does Altitude Affect the P1444 Nissan Error Code?
Higher altitudes mean thinner air, which can affect how your car's engine mixes fuel and air. If the mix isn't right, it might cause the P1444 Nissan error code. So, if you're driving in mountains, this might happen because the air is thinner there.
Can Aftermarket Accessories Trigger the P1444 Code?
Yes, sometimes extra car parts can cause the P1444 code. If these parts mess with the car's emissions or change how the vacuum works, the car might not run right and show this code. It's like giving the car something it doesn't like!
Does Weather Impact the EVAP System and P1444 Code?
Yes, weather can affect your car's EVAP system. Very hot or very cold weather can change how seals and pressure work. This might cause problems and make error codes like P1444 appear. So, remember this when the weather is extreme.
How Often Does the P1444 Code Reoccur After Repair?
The P1444 code might come back after fixing if the repair isn't done well or if other parts are still bad. If everything is fixed properly, it should not show up again often. It's important to check everything carefully to avoid the code returning.
Is the P1444 Code Linked to Specific Nissan Models More Frequently?
Yes, the P1444 code happens more often in some Nissan models like Altima and Sentra. These cars have a system called EVAP that can cause this issue. It's a part that helps control gas fumes, and sometimes it doesn't work right.