P0455 2012 Nissan Altima Sedan 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 Altima Sedan 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 Altima Sedan 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 Altima Sedan?
- 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 Altima Sedan?
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
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0455 2012 Nissan Altima Sedan 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 Altima Sedan Code
1. What does OBDII code P0455 on my 2012 Nissan Altima Sedan mean?
- This code indicates a "EVAP Control System Gross Leak Detected."
2. What are the common symptoms of a P0455 code on a 2012 Nissan Altima?
- Common symptoms include the check engine light being illuminated, a fuel odor around the vehicle, and potential issues with the vehicle's fuel economy.
3. What are the possible causes of a P0455 code on a 2012 Nissan Altima?
- Causes can include a loose or missing gas cap, a damaged EVAP system component, a faulty purge valve, or a cracked or damaged EVAP hose.
4. How serious is a P0455 code on a 2012 Nissan Altima Sedan?
- While not an immediate emergency, ignoring this code can lead to increased emissions and potential damage to the vehicle's engine components over time.
5. Can I continue to drive my 2012 Nissan Altima with a P0455 code?
- It is generally safe to drive the vehicle for a short distance with this code, but it is recommended to have it diagnosed and repaired as soon as possible to prevent further issues.
6. How can I diagnose a P0455 code on my 2012 Nissan Altima Sedan?
- Diagnosing this code typically involves inspecting the gas cap for tightness, checking the EVAP system components for damage, and using a smoke machine to detect leaks.
7. Can I repair a P0455 code on a 2012 Nissan Altima Sedan myself?
- Depending on the cause, some DIY repairs may be possible, such as replacing a gas cap. However, for more complex issues, it is recommended to seek professional help.
8. How much does it cost to repair a P0455 code on a 2012 Nissan Altima?
- The cost of repairs can vary widely depending on the specific cause of the code, but it may range from a simple gas cap replacement to more involved EVAP system component repairs.
9. How long does it take to repair a P0455 code on a 2012 Nissan Altima?
- The repair time can vary based on the cause of the code and the extent of the repair needed. Simple fixes like replacing a gas cap can be done quickly, while more complex repairs may take longer.
10. Are there any preventive measures to avoid a P0455 code on my 2012 Nissan Altima Sedan?
- Regularly checking and tightening the gas cap after refueling, keeping up with routine maintenance, and addressing any fuel system issues promptly can help prevent the occurrence of a P0455 code.
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