P0455 2011 Nissan Pathfinder Code - EVAP Control System Gross Leak Detected
Quick Answer
This diagnosis detects leaks in the Evaporative Emission System (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 Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
- What it means
- P0455 2011 Nissan Pathfinder indicates EVAP Control System Gross Leak Detected.
- 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
- Low - monitor the vehicle and repair when practical.
- Can I drive?
- The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
Code P0455 2011 Nissan Pathfinder 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 P0455 2011 Nissan Pathfinder?
- 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 P0455 2011 Nissan Pathfinder?
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
There is a factory Nissan service bulletin to help diagnose the P0455 code:
Nissan Factory Service Bulletin OBDII Code P0455
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0455 2011 Nissan Pathfinder 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.
Need more information about the P0455 2011 Nissan Pathfinder code?
Need more information on how to fix the P0455 2011 Nissan Pathfinder code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the P0455 2011 Nissan Pathfinder code diagnosed by a professional: Find a repair shop in your area
Frequently Asked Questions about P0455 2011 Nissan Pathfinder Code
1. What does the OBDII code P0455 mean on a 2011 Nissan Pathfinder?
P0455 indicates a "Gross Leak Detected" in the EVAP (Evaporative Emission Control) system, meaning there is a large leak or disconnection in the system designed to prevent fuel vapors from escaping into the atmosphere.
2. What are the common symptoms of code P0455 in a 2011 Nissan Pathfinder?
Common symptoms include the check engine light turning on, a possible fuel smell near the vehicle, and in rare cases, a slight drop in fuel efficiency. There are usually no noticeable performance issues.
3. What causes the P0455 code on a 2011 Nissan Pathfinder?
Common causes include a loose or damaged gas cap, a cracked or disconnected EVAP hose, a faulty purge valve, or a damaged charcoal canister.
4. Can a loose gas cap trigger the P0455 code?
Yes, a loose, missing, or damaged gas cap is one of the most common reasons for a P0455 code. Always check the gas cap first before further diagnosis.
5. How do I fix the P0455 code on my 2011 Nissan Pathfinder?
Start by tightening or replacing the gas cap if needed. If the code persists, inspect EVAP system components like hoses, connections, the purge valve, and the charcoal canister for damage or leaks.
6. Is it safe to drive with the P0455 code on my 2011 Nissan Pathfinder?
Yes, it’s generally safe to drive with this code, as it usually doesn’t affect drivability. However, it’s important to address it promptly to avoid increased emissions and potential damage to the EVAP system.
7. How can I diagnose the P0455 code on a 2011 Nissan Pathfinder?
You can perform a visual inspection of the gas cap and EVAP system components for leaks or damage. A smoke test may also be used to locate leaks in the system if no visible issues are found.
8. Can a faulty purge valve cause the P0455 code?
Yes, a malfunctioning purge valve can lead to a gross leak detection, as it may fail to seal properly, allowing fuel vapors to escape.
9. How much does it cost to repair a P0455 code on a 2011 Nissan Pathfinder?
The cost depends on the cause. Replacing a gas cap might cost $20-$50, while repairing EVAP hoses or components could range from $100 to $500, depending on labor and parts.
10. Will clearing the P0455 code solve the problem?
Clearing the code will turn off the check engine light temporarily, but the code will return unless the underlying issue in the EVAP system is fixed.
Discuss the causes and fixes for P0455 2011 Nissan Pathfinder OBDII Code
Code P0455 2011 Nissan Pathfinder comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
