P0455 2012 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 2012 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 2012 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 2012 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 2012 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 2012 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 2012 Nissan Pathfinder Code
1. What does the OBDII code P0455 mean on a 2012 Nissan Pathfinder?
P0455 indicates a "Gross Leak Detected" in the EVAP (Evaporative Emission Control) system, meaning there’s a large leak or a complete disconnection in the system.
2. What are the common symptoms of code P0455 in a 2012 Nissan Pathfinder?
Symptoms may include an illuminated check engine light, a faint fuel smell around the vehicle, and possibly a slight drop in fuel efficiency.
3. What causes the P0455 code on a 2012 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 causes of the P0455 code.
5. How do I fix the P0455 code on my 2012 Nissan Pathfinder?
Start by tightening or replacing the gas cap. If the code persists, inspect the EVAP hoses and components for damage and replace any faulty parts.
6. Is it safe to drive with the P0455 code on my 2012 Nissan Pathfinder?
Driving with the P0455 code is generally safe, but it can lead to increased emissions and reduced fuel efficiency. It’s best to fix the issue promptly.
7. How do I diagnose the P0455 code on a 2012 Nissan Pathfinder?
Use an OBDII scanner to confirm the code, then inspect the gas cap, EVAP hoses, purge valve, and charcoal canister for damage or leaks.
8. Will clearing the P0455 code solve the problem?
Clearing the code will turn off the check engine light temporarily, but if the underlying issue isn’t fixed, the code will return.
9. What tools do I need to troubleshoot the P0455 code?
You’ll need an OBDII scanner, a vacuum pump (optional for testing valves), and basic tools to inspect and replace EVAP system components.
10. How much does it cost to repair the P0455 code on a 2012 Nissan Pathfinder?
Costs vary depending on the issue. Replacing a gas cap typically costs $10-$30, while more extensive repairs like replacing a purge valve or charcoal canister can range from $100-$500, including labor.
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