AutoCodes – Nissan – P0455 2005 Nissan Sentra

P0455 2005 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 2005 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.

Save to My Repairs Step-by-Step Diagnostic Guide My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 20,730

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Mar 25, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code P0455 2005 Nissan Sentra Description

This diagnosis detects leaks in the Evaporative Emission System (EVAP) purge line using engine intake manifold vacuum. If pressure does not increase, the Engine Control Module (ECM) will check for leaks in the line between the fuel tank and EVAP canister purge volume control solenoid valve under the following vacuum test condition.
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.

OBDII Code P0455 2005 Nissan Sentra - EVAP Control System Gross Leak Detected - AutoCodes.com — P0455 2005 Nissan Sentra Code - EVAP Control System Gross Leak Detected

What does this mean?

What are the Possible Causes of the DTC P0455 2005 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 2005 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.

What does this mean?

Code Tech Notes

The P0455 it's a very common code because the code is set if the gas cap is loose or missing. Start by tightening the gas cap and clearing the code. In most cases, the code can be clear by disconnecting the car battery for about 30 minutes.

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 2005 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 2005 Nissan Sentra code?

Need more information on how to fix the P0455 2005 Nissan Sentra code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0455 2005 Nissan Sentra code diagnosed by a professional: Find a repair shop in your area

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0455 2005 Nissan Sentra Code

1. What does the OBDII code P0455 mean for a 2005 Nissan Sentra?

The P0455 code indicates that the EVAP control system has detected a gross leak, meaning there is a significant issue with the vehicle's evaporative emissions system.

2. What are common symptoms of a P0455 code in a 2005 Nissan Sentra?

Common symptoms include the check engine light coming on, a strong fuel smell from the vehicle, and decreased fuel efficiency.

3. What are the possible causes of a P0455 code in a 2005 Nissan Sentra?

Potential causes include a loose or damaged gas cap, a leak in the EVAP system hoses, a malfunctioning purge valve, or a faulty EVAP canister.

4. How can I diagnose a P0455 code in my 2005 Nissan Sentra?

Diagnosing a P0455 code typically involves inspecting the gas cap for proper sealing, checking the EVAP system hoses for leaks, testing the purge valve for proper operation, and inspecting the EVAP canister for damage.

5. Can I still drive my 2005 Nissan Sentra with a P0455 code?

It is generally safe to drive the vehicle with a P0455 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent potential damage to the emissions system.

6. How can I fix a P0455 code in my 2005 Nissan Sentra?

To fix a P0455 code, you may need to tighten or replace the gas cap, repair or replace damaged EVAP system hoses, replace a faulty purge valve, or replace a damaged EVAP canister.

7. Will resetting the check engine light clear a P0455 code in a 2005 Nissan Sentra?

Resetting the check engine light may temporarily clear the code, but if the underlying issue causing the P0455 code is not addressed, the code is likely to reappear.

8. How much does it typically cost to repair a P0455 code in a 2005 Nissan Sentra?

The cost of repairing a P0455 code can vary depending on the specific cause of the issue, but it may range from around $100 for a simple fix like replacing a gas cap to several hundred dollars for more complex repairs.

9. Can a P0455 code in a 2005 Nissan Sentra cause emissions test failure?

Yes, a P0455 code can cause a vehicle to fail an emissions test as it indicates a significant issue with the EVAP system, which is part of the emissions control system.

10. Is it possible to prevent a P0455 code in a 2005 Nissan Sentra?

Regularly checking and tightening the gas cap, inspecting the EVAP system components for damage, and addressing any issues promptly can help prevent a P0455 code from occurring in the future.