P1441 Nissan Code - Evaporative Emission Control System Very Small Leak
Quick Answer
This diagnosis detects leaks in the Evaporative Emission (EVAP) purge line using engine intake manifold vacuum. Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1441 Nissan indicates Evaporative Emission Control System Very Small Leak.
- Common causes
- Common causes include Missing or loose fuel cap, Incorrect fuel filler cap used, Fuel filler cap remains open or fails to close.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1441 Nissan Description
The vacuum cut valve bypass valve is opened to clear the line between the fuel tank and the EVAP canister purge volume control solenoid valve. The EVAP canister vent control valve will then be closed to shut the EVAP purge line off. The EVAP canister purge volume control solenoid valve is opened to depressurize the EVAP purge line using intake manifold vacuum. After this depressurization is implemented, the EVAP canister purge volume control solenoid valve will be closed.
What are the Possible Causes of the DTC P1441 Nissan?
- Missing or loose fuel cap
- Incorrect fuel filler cap used
- Fuel filler cap remains open or fails to close
- Foreign matter caught in fuel filler cap
- EVAP canister or fuel tank leaks
- EVAP system hose leaking
- Fuel tank leaking
How to Fix the DTC P1441 Nissan?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1441 Nissan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P1441 Nissan Code
1. What are the common symptoms of OBDII code P1441 related to the Evaporative Emission Control System Very Small Leak?
- Common symptoms include the Check Engine Light coming on, decreased fuel efficiency, and a noticeable fuel odor.
2. What are the typical causes of OBDII code P1441 in a Nissan vehicle?
- The most common causes of P1441 in Nissan vehicles are a loose or damaged gas cap, a cracked or damaged vacuum hose, or a faulty purge control valve.
3. How serious is OBDII code P1441 in a Nissan vehicle?
- While P1441 is generally not a critical issue, it can lead to increased emissions and decreased fuel efficiency if left unresolved.
4. What is the best way to diagnose the cause of OBDII code P1441 in a Nissan vehicle?
- A thorough inspection of the gas cap, vacuum hoses, and purge control valve is recommended, along with conducting a smoke test to identify any leaks in the evaporative emission control system.
5. Can I continue driving my Nissan with OBDII code P1441 present?
- It is generally safe to drive with P1441, but it is recommended to address the issue promptly to prevent potential negative impacts on fuel economy and emissions.
6. How can I reset the Check Engine Light after repairing OBDII code P1441 in my Nissan?
- After completing the necessary repairs, you can reset the Check Engine Light using an OBDII scanner or by disconnecting the car's battery for a few minutes.
7. Are there any DIY repair tips for fixing OBDII code P1441 in a Nissan?
- DIY repair tips include checking and tightening the gas cap, inspecting vacuum hoses for damage, and visually inspecting the purge control valve for any obvious issues.
8. Can a faulty purge control valve cause OBDII code P1441 in a Nissan?
- Yes, a malfunctioning purge control valve can cause P1441 by not properly controlling the flow of fuel vapors from the charcoal canister to the engine.
9. How long does it typically take to repair OBDII code P1441 in a Nissan?
- The repair time for P1441 can vary depending on the exact cause of the issue, but it can generally be resolved within a few hours to a day.
10. Is it possible for OBDII code P1441 to reappear after being repaired in a Nissan?
- If the root cause of P1441 is not properly addressed, the code may reappear. It is important to ensure all components of the evaporative emission control system are thoroughly inspected and any faults are corrected.
Discuss the causes and fixes for P1441 Nissan OBDII Code
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i have replaced canister purge value and cuy off value and gas cap all from nissan the code still comes up i have herd of aproblem where the dealer needs to download a progam in to the ecm any comments
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What model and year is your Nissan? With the model and year we can find out if there is an update program for the ECM.
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I have the same error code reported yesterday and i have seen same symptons ( fuel odor). Its nissan altima 2001. Can you please let me know how to fix it and what could be the cost of it?
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The most common problem is a loos gas cap. You should start by tighten the gas cap or replaced it if it looks damage and disconnect the car battery for about 30 minutes to rest the light. (the light will rest it self a few days if the problem was the gas cap) If the light comes back, then you may have to take you Altima to a shop to have the problem diagnose.
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Thank you so much for the prompt reply. I checked it and tighten it again, just to make sure. I did not try the battery disconnect, as you mentioned above. I am not sure how to do that. if you can guide me, that will be perfect or I can Google it as well, which ever is feasible.Meantime, can I go to Autozone and tell them to clear out the code (if possible) and see if that works?
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Disconnecting the battery clears the code, but if you can have AutoZone do that for you, then you don't need to disconnect the battery.
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Where can the leaking be spotted? I changed my fuel cap n ses light came back up.
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My 1999 4wd pathfinder has the same code and the gas cap being replaced and always tighten does not work this vehicle. Check engine light pops up after 2-3 cycles of the engine when I clear the code. Check engine light goes off after long periods of not driving, 2-5 months sitting parked.
I had the evap system flooded with smoke to check leaks, but none were spotted. The mechanic could not see above the gas tank for the smoke test and wants to drop the tank to see it now, also to see if there is a sensor that needs replaced or possibly seals... any advice? I need to pass my yearly inspection.
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How is the EVAP canister? It's very common for the EVAP canister on the Pathfinder to fail. Remove the canister and check for water or carbon pieces coming from inside the canister. If carbon pieces comes out, you have to replaced the canister and clean the EVAP system.
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2001 Nissan Altima GXE - got the Service Engine Soon light on yesterday. I took it to Nissan dealer and got the code as P1441. I have tightened the fuel cap. But after reading the conversation I remember that I noticed a odor like 2 weeks back while driving. Its kind of something burning like cloth/plastic. Is n't just be the fuel cap? Please suggest.
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Unfortunately there are many things that can cause that code. Components can fail, hoses can get damage or loose. I suggest to have a shop check for leaks. Most shops have a special tools to locate leaks.
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I have the 1997 Nissan Hardbody Pickup, and the p1441 code is what was diagnosed I was told there is a small leak (0.020"), and they said I need to buy a new vacuum cut valve 911-508, is this true I wanted to get a second opinion.
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Unfortunately there are many things that could cause an small leak, the valve is definitely one of those things. Did you tried closing the gas cap and clearing the code first?
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If you already fixed the problem, you can disconnect the car battery for about 30 minutes to reset the light.
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Replaced part Dorman 911-510 Evaporative Emissions Purge Solenoid Valve three days now, no code as of now on 2001 pathfinder
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