P0455 2011 Nissan Sentra 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 Sentra 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 Sentra 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 Sentra?
- 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 Sentra?
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 Sentra 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 Sentra code?
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Frequently Asked Questions about P0455 2011 Nissan Sentra Code
1. What does OBDII code P0455 on a 2011 Nissan Sentra mean?
The code P0455 indicates that the EVAP control system has detected a gross leak, meaning there is a significant issue with the system's ability to contain fuel vapors.
2. What are common symptoms of a P0455 code on a 2011 Nissan Sentra?
Common symptoms include the check engine light coming on, a noticeable gasoline odor around the vehicle, and potential difficulty starting the car.
3. What are the possible causes of a P0455 code on a 2011 Nissan Sentra?
Possible causes include a loose or damaged gas cap, a leak in the EVAP system hoses, a faulty EVAP canister, or issues with the purge valve or vent valve.
4. How serious is a P0455 code on a 2011 Nissan Sentra?
While the vehicle may still be drivable with a P0455 code, it is important to address the issue promptly to prevent potential safety hazards and damage to the environment.
5. How do you diagnose a P0455 code on a 2011 Nissan Sentra?
Diagnosing a P0455 code typically involves inspecting the gas cap, checking the EVAP system for leaks using a smoke machine, and testing the purge valve and vent valve for proper operation.
6. Can I continue driving my 2011 Nissan Sentra with a P0455 code?
It is generally not recommended to ignore a P0455 code and continue driving, as it can lead to decreased fuel efficiency and potential emissions issues.
7. How do you repair a P0455 code on a 2011 Nissan Sentra?
Repairing a P0455 code may involve tightening or replacing the gas cap, repairing or replacing damaged EVAP system components, or clearing obstructions in the system.
8. Can a P0455 code on a 2011 Nissan Sentra cause other problems if left unaddressed?
Leaving a P0455 code unaddressed can potentially lead to decreased fuel efficiency, increased emissions, and even engine performance issues over time.
9. How much does it typically cost to repair a P0455 code on a 2011 Nissan Sentra?
The cost of repairing a P0455 code can vary depending on the specific cause of the issue, but it may range from a simple fix like tightening the gas cap to more involved repairs involving EVAP system components.
10. How can I prevent a P0455 code from recurring on my 2011 Nissan Sentra?
To prevent a P0455 code from recurring, it is essential to ensure the gas cap is tightened properly after refueling, regularly inspect the EVAP system for leaks, and address any issues promptly to maintain proper system function.
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