P0455 2008 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 2008 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 2008 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 2008 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 2008 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
Nissan models with factory service bulletin for the 2005 Nissan Pathfinder:
2005-2007 Nissan Pathfinder Service Bulletin OBDII Code P0455
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0455 2008 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 2008 Nissan Pathfinder code?
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Frequently Asked Questions about P0455 2008 Nissan Pathfinder Code
1. What does OBDII code P0455 mean on a 2008 Nissan Pathfinder?
P0455 indicates a "Gross Leak Detected" in the EVAP (Evaporative Emission Control) system, meaning there is a large leak or a complete disconnection in the system.
2. What are the common symptoms of code P0455 in a 2008 Nissan Pathfinder?
The most common symptoms include the check engine light turning on, a possible fuel odor near the vehicle, and no noticeable performance issues in most cases.
3. What causes the P0455 code to appear on a 2008 Nissan Pathfinder?
Common causes include a loose or damaged gas cap, a cracked or disconnected EVAP hose, a faulty purge valve, or a leaking charcoal canister.
4. Can a loose gas cap trigger code P0455 in a 2008 Nissan Pathfinder?
Yes, a loose, damaged, or missing gas cap is one of the most common reasons for this code.
5. How do I diagnose the P0455 code on my 2008 Nissan Pathfinder?
Start by checking the gas cap for damage or looseness. If the gas cap is fine, inspect EVAP hoses for cracks or disconnections and use a smoke test to locate leaks.
6. Can I drive my 2008 Nissan Pathfinder with a P0455 code?
Yes, the vehicle is usually safe to drive, but prolonged driving without addressing the issue can lead to increased emissions and potential damage to the EVAP system.
7. How do I fix the P0455 code on a 2008 Nissan Pathfinder?
Common fixes include tightening or replacing the gas cap, repairing or replacing damaged EVAP hoses, or replacing faulty components like the purge valve or charcoal canister.
8. How much does it cost to fix code P0455 on a 2008 Nissan Pathfinder?
The cost varies depending on the issue. Replacing a gas cap costs $10–$30, while repairing EVAP hoses or replacing a purge valve or charcoal canister can cost $100–$600.
9. Will clearing the P0455 code solve the problem permanently?
No, clearing the code will only temporarily turn off the check engine light. The underlying issue must be resolved to prevent the code from returning.
10. How can I prevent the P0455 code from recurring on my 2008 Nissan Pathfinder?
Ensure the gas cap is properly tightened after refueling, inspect EVAP components regularly for damage, and address any fuel system issues promptly.
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