P0455 2002 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 2002 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 2002 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 2002 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 2002 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 2002 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 2002 Nissan Altima Sedan Code
1. What does code P0455 mean on a 2002 Nissan Altima?
Code P0455 indicates a "Gross Leak Detected" in the EVAP (Evaporative Emission Control) system, meaning a significant leak or issue is preventing the system from containing fuel vapors.
2. What are the common symptoms of P0455 in a 2002 Nissan Altima?
The most common symptoms include the Check Engine Light turning on, a possible fuel odor near the vehicle, and occasionally a slight decrease in fuel efficiency. Performance is usually unaffected.
3. What causes the P0455 code on a 2002 Nissan Altima?
Common causes include a loose or damaged gas cap, cracked EVAP hoses, a faulty purge valve, a leak in the charcoal canister, or damaged fuel tank components.
4. How do I fix the P0455 code on my 2002 Nissan Altima?
Start by tightening or replacing the gas cap. If the issue persists, inspect EVAP hoses and components for cracks or leaks, and replace any damaged parts. A smoke test may be needed to locate hidden leaks.
5. Can a loose gas cap trigger the P0455 code?
Yes, a loose or missing gas cap is one of the most common causes of the P0455 code. Ensure the gas cap is properly tightened and in good condition.
6. Is it safe to drive with a P0455 code on a 2002 Nissan Altima?
While the car remains driveable, the P0455 code indicates an emissions issue that should be addressed to prevent environmental impact and ensure the system functions correctly.
7. How do I reset the P0455 code after fixing the problem?
You can reset the code by using an OBDII scanner or disconnecting the car battery for about 15 minutes. If the problem is fixed, the code should not return.
8. How much does it cost to fix the P0455 code on a 2002 Nissan Altima?
The cost depends on the cause. Replacing a gas cap may cost $10-$20, while diagnosing and repairing a leak or component failure in the EVAP system can range from $100 to $500 or more.
9. Will a P0455 code cause my 2002 Nissan Altima to fail an emissions test?
Yes, as the EVAP system is crucial for controlling fuel vapor emissions, a P0455 code will likely cause the vehicle to fail an emissions test.
10. How can I prevent the P0455 code from recurring on my 2002 Nissan Altima?
Regularly check and properly secure the gas cap, inspect EVAP hoses for wear, and address fuel system issues promptly to maintain the integrity of the EVAP system.
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