AutoCodesNissan – P0456 2008 Nissan Rogue

P0456 2008 Nissan Rogue Code - Evaporative Emission Control System Very Small 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
P0456 2008 Nissan Rogue indicates Evaporative Emission Control System Very Small 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.
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Code Popularity 4,779
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 05, 2022
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Code P0456 2008 Nissan Rogue 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 P0456 2008 Nissan Rogue - Evaporative Emission Control System Very Small Leak Detected - AutoCodes.com
P0456 2008 Nissan Rogue Code - Evaporative Emission Control System Very Small Leak Detected

What are the Possible Causes of the DTC P0456 2008 Nissan Rogue?

  • 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
  • Evaporative Emission (EVAP) canister or fuel tank leaks
  • Evaporative Emission (EVAP) system hose leaking
  • Fuel tank leaking

How to Fix the DTC P0456 2008 Nissan Rogue?

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0456 2008 Nissan Rogue 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 P0456 2008 Nissan Rogue code?

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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 P0456 2008 Nissan Rogue Code

1. What does the OBDII code P0456 mean on a 2008 Nissan Rogue?

P0456 indicates a "Very Small Leak Detected" in the Evaporative Emission Control (EVAP) system, which prevents fuel vapors from escaping into the atmosphere.

2. What are the common symptoms of a P0456 code on a 2008 Nissan Rogue?

The most common symptom is the check engine light turning on. There are typically no noticeable performance issues.

3. What causes the P0456 code on a 2008 Nissan Rogue?

Common causes include a loose or damaged gas cap, a leaking EVAP hose, a faulty purge valve, or a small crack in the EVAP system components.

4. Can a loose gas cap trigger the P0456 code?

Yes, a loose or improperly sealed gas cap is one of the most common causes of the P0456 code.

5. How do I fix the P0456 code on my 2008 Nissan Rogue?

Start by checking and tightening the gas cap. If the issue persists, inspect the EVAP system for leaks or damaged components and replace any faulty parts.

6. Is it safe to drive with a P0456 code on a 2008 Nissan Rogue?

Yes, it’s generally safe to drive, but you should address the issue promptly to ensure the EVAP system is functioning properly and to prevent emissions violations.

7. How can I diagnose the P0456 code on my 2008 Nissan Rogue?

Use an OBDII scanner to confirm the code, then visually inspect the gas cap, EVAP hoses, and components for leaks or damage. Smoke testing may be needed for hard-to-find leaks.

8. Will replacing the gas cap fix the P0456 code?

If the gas cap is loose, damaged, or not sealing properly, replacing it often resolves the issue. However, if the code persists, further EVAP system diagnostics are needed.

9. How much does it cost to repair a P0456 code on a 2008 Nissan Rogue?

Repair costs vary based on the cause. A gas cap replacement may cost $20-$50, while more extensive repairs like replacing EVAP components can range from $150 to $600.

10. Can extreme weather cause the P0456 code on a 2008 Nissan Rogue?

Yes, extreme heat or cold can sometimes cause seals or hoses in the EVAP system to expand or contract, potentially leading to small leaks.

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