P0455 2003 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 2003 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 2003 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 2003 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 2003 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
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0455 2003 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 2003 Nissan Altima Sedan Code
1. What does the OBDII code P0455 mean for my 2003 Nissan Altima Sedan?
The code P0455 indicates a gross leak in the EVAP (Evaporative Emission Control) system of your vehicle.
2. What are common symptoms of a P0455 code in a 2003 Nissan Altima Sedan?
Common symptoms include the check engine light illuminating on the dashboard and potentially a gasoline odor around the vehicle.
3. What are possible causes of a P0455 code in a 2003 Nissan Altima Sedan?
Potential causes include a loose or damaged gas cap, a cracked or disconnected EVAP hose, a faulty EVAP canister, or a malfunctioning purge or vent valve.
4. How can I diagnose the source of a P0455 code in my 2003 Nissan Altima Sedan?
You can start by checking the gas cap to ensure it is tightened properly. Inspect the EVAP system components for any visible damage or leaks. Using a smoke machine can help identify the exact location of the leak.
5. Can I continue driving my 2003 Nissan Altima Sedan with a P0455 code?
While the vehicle may still be drivable with a P0455 code, it is recommended to address the issue promptly to prevent potential emissions and performance issues.
6. How can I repair a P0455 code in my 2003 Nissan Altima Sedan?
Repair options may include tightening or replacing the gas cap, repairing or replacing damaged EVAP system components, clearing the code with an OBDII scanner, and performing a drive cycle to ensure the issue is resolved.
7. Will a P0455 code cause my 2003 Nissan Altima Sedan to fail an emissions test?
Yes, a P0455 code typically indicates a significant emissions-related issue, which may cause the vehicle to fail an emissions test.
8. How much does it cost to repair a P0455 code in a 2003 Nissan Altima Sedan?
The cost of repair can vary depending on the exact cause of the code and the labor rates in your area. Simple fixes like a gas cap replacement may be relatively inexpensive, while more complex repairs could be more costly.
9. Can a P0455 code in a 2003 Nissan Altima Sedan cause other problems if left unresolved?
Leaving a P0455 code unresolved can potentially lead to decreased fuel efficiency, increased emissions, and even damage to other engine components over time.
10. How often does a P0455 code occur in a 2003 Nissan Altima Sedan?
The frequency of a P0455 code occurring can vary depending on the vehicle's maintenance history, driving conditions, and the overall condition of the EVAP system components.
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