P0455 2006 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 2006 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 2006 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 2006 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 2006 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
There is a factory service bulletin for the 2006 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 2006 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.
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Frequently Asked Questions about P0455 2006 Nissan Pathfinder Code
1. What does the OBDII code P0455 mean on a 2006 Nissan Pathfinder?
P0455 indicates a "Gross Leak Detected" in the EVAP (Evaporative Emission Control) system, which helps prevent fuel vapors from escaping into the atmosphere.
2. What are the common symptoms of a P0455 code on a 2006 Nissan Pathfinder?
Common symptoms include an illuminated check engine light, a faint fuel smell near the vehicle, and occasionally reduced fuel efficiency, although drivability is usually not affected.
3. What causes the P0455 code to trigger on a 2006 Nissan Pathfinder?
Typical causes include a loose or damaged gas cap, a cracked or disconnected EVAP hose, a faulty purge valve, or a malfunctioning EVAP canister.
4. Can a loose gas cap cause the P0455 code on my 2006 Nissan Pathfinder?
Yes, a loose or improperly sealed gas cap is one of the most common causes of the P0455 code. It should be checked and tightened or replaced if needed.
5. How can I diagnose the P0455 code on a 2006 Nissan Pathfinder?
Start by inspecting the gas cap for damage or looseness. Next, check for cracked or disconnected hoses in the EVAP system. If no issues are visible, a smoke test can help identify leaks.
6. How do I fix the P0455 code on my 2006 Nissan Pathfinder?
The most common fixes include tightening or replacing the gas cap, repairing or replacing damaged EVAP hoses, replacing a faulty purge valve, or addressing issues with the EVAP canister.
7. Is it safe to drive my 2006 Nissan Pathfinder with the P0455 code?
Yes, it is generally safe to drive with a P0455 code, as it does not typically affect drivability. However, you should address the issue promptly to avoid emissions problems.
8. How much does it cost to fix the P0455 code on a 2006 Nissan Pathfinder?
The cost can vary depending on the cause. A gas cap replacement may cost $20-$50, while EVAP system repairs or component replacements could range from $150 to $600.
9. Can extreme weather cause the P0455 code on a 2006 Nissan Pathfinder?
Yes, extreme heat or cold can cause EVAP system components to crack or hoses to become loose, potentially triggering the P0455 code.
10. Will clearing the P0455 code fix the problem on my 2006 Nissan Pathfinder?
Clearing the code will turn off the check engine light temporarily, but the code will return if the underlying issue is not resolved.
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