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Engine-Codes – Nissan – P0455 2006 Nissan Maxima

P0455 2006 Nissan Maxima Code - EVAP Control System Gross Leak Detected

Quick Answer

The P0455 code for a 2006 Nissan Maxima indicates that there is a gross leak detected in the EVAP (Evaporative Emission Control) system. Common causes include Loose or damaged gas cap, Cracked or disconnected EVAP hose, Faulty purge valve. 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 Maxima indicates EVAP Control System Gross Leak Detected.
Common causes
Common causes include Loose or damaged gas cap, Cracked or disconnected EVAP hose, Faulty purge valve.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0455 2006 Nissan Maxima Description

The P0455 code for a 2006 Nissan Maxima indicates that there is a gross leak detected in the EVAP (Evaporative Emission Control) system. The EVAP system is responsible for capturing and storing fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. When a gross leak is detected, it means that there is a significant issue with the system that could potentially lead to increased emissions and decreased fuel efficiency.

OBDII Code P0455 2006 Nissan Maxima - EVAP Control System Gross Leak Detected
P0455 2006 Nissan Maxima Code - EVAP Control System Gross Leak Detected

Common Causes of P0455 2006 Nissan Maxima

  1. Loose or damaged gas cap
  2. Cracked or disconnected EVAP hose
  3. Faulty purge valve
  4. Leak in the EVAP system
  5. Damage to the charcoal canister

Symptoms of P0455 2006 Nissan Maxima

  1. Check Engine light illuminated on the dashboard
  2. Strong fuel odor near the vehicle
  3. Decreased fuel efficiency
  4. Hissing or whistling noise coming from the fuel tank area
  5. Difficulty starting the engine

How to Fix P0455 2006 Nissan Maxima

  1. Begin by inspecting the gas cap to ensure it is properly tightened or replacing it if damaged.
  2. Check all EVAP hoses for cracks or disconnections and repair or replace as needed.
  3. Test the purge valve to see if it is functioning correctly and replace if faulty.
  4. Perform a smoke test on the EVAP system to locate any leaks and repair them accordingly.
  5. Reset the Check Engine light and monitor the system for any recurring issues.

Cost to Fix P0455 2006 Nissan Maxima

The typical repair costs for addressing a P0455 code on a 2006 Nissan Maxima can range from $100 to $500, depending on the specific cause of the issue and the cost of parts and labor. It is important to note that diagnosis time and labor rates at auto repair shops can vary, so it is advisable to check local rates for a more accurate estimate. Additionally, factors such as location, vehicle make and model, and engine type can also impact the overall cost of the repair.

What does this mean?

Tech Notes for P0455 2006 Nissan Maxima

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

When is the Code Detected?

Malfunction is detected when EVAP control system has a leak, EVAP control system does not operate properly.

Need more information about the P0455 2006 Nissan Maxima code?

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Need Help with the 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 P0455 2006 Nissan Maxima Code

1. What does the OBDII code P0455 mean on a 2006 Nissan Maxima?

P0455 indicates a "Gross Leak" in the EVAP (Evaporative Emission Control) system, meaning there is a significant leak or disconnection in the system that prevents it from containing fuel vapors properly.

2. What are the common symptoms of code P0455 in a 2006 Nissan Maxima?

Symptoms often include an illuminated check engine light, a noticeable fuel smell near the vehicle, and, in some cases, slightly reduced fuel efficiency. However, there may be no noticeable driving issues.

3. What causes the P0455 code on a 2006 Nissan Maxima?

Common causes include a loose or damaged gas cap, cracked or disconnected EVAP hoses, a faulty purge or vent valve, or a leaking charcoal canister.

4. Can a loose gas cap trigger the P0455 code on a 2006 Nissan Maxima?

Yes, a loose, missing, or damaged gas cap is one of the most common causes of the P0455 code. Ensure the gas cap is tightened properly and in good condition.

5. How can I diagnose the P0455 code on my 2006 Nissan Maxima?

Start by checking the gas cap for proper fitment and damage. Then inspect EVAP hoses for cracks or disconnections. If no issues are visible, a smoke test may be needed to locate leaks in the EVAP system.

6. Can I drive my 2006 Nissan Maxima with a P0455 code?

While the vehicle is typically safe to drive with a P0455 code, it can lead to increased emissions and fuel vapor loss. It's still important to address the issue promptly to ensure proper vehicle function and environmental compliance.

7. How do I fix the P0455 code on a 2006 Nissan Maxima?

The fix depends on the cause. Common repairs include tightening or replacing the gas cap, repairing or replacing damaged EVAP hoses, replacing a faulty purge/vent valve, or replacing the charcoal canister.

8. How much does it cost to repair a P0455 code on a 2006 Nissan Maxima?

Costs vary depending on the issue. Replacing a gas cap costs $15–$50, while fixing hoses or valves can range from $100–$300. A charcoal canister replacement may cost $200–$600, including labor.

9. Will clearing the P0455 code fix the problem on a 2006 Nissan Maxima?

Clearing the code will turn off the check engine light temporarily, but if the underlying issue isn't resolved, the code will return after the vehicle completes its diagnostic cycle.

10. Can a faulty purge valve cause the P0455 code on a 2006 Nissan Maxima?

Yes, a faulty purge valve can cause a gross leak in the EVAP system, leading to the P0455 code. It may need to be tested and replaced if found defective.

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