P0455 2007 Nissan Sentra 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 2007 Nissan Sentra 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 2007 Nissan Sentra 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 2007 Nissan Sentra?
- 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 2007 Nissan Sentra?
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 2007 Nissan Sentra 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 2007 Nissan Sentra Code
1. What does the OBDII code P0455 mean on a 2007 Nissan Sentra?
P0455 indicates that the EVAP (Evaporative Emission Control) system has detected a gross leak, meaning a large leak in the system that prevents it from containing fuel vapors properly.
2. What are the common symptoms of a P0455 code in a 2007 Nissan Sentra?
Common symptoms include the check engine light turning on, a noticeable fuel smell near the vehicle, and possibly reduced fuel efficiency. However, drivability is usually unaffected.
3. What causes the P0455 code in a 2007 Nissan Sentra?
Common causes include a loose or damaged gas cap, a cracked or disconnected EVAP hose, a faulty purge valve, or a damaged charcoal canister.
4. Can I drive my 2007 Nissan Sentra with the P0455 code?
Yes, you can drive the car with this code since it typically doesn’t affect performance, but it’s recommended to address it promptly to avoid emissions issues and potential fuel vapor loss.
5. How do I fix the P0455 code on my 2007 Nissan Sentra?
Start by checking and tightening the gas cap. If the code persists, inspect the EVAP hoses for cracks or damage, check the purge valve for proper operation, and test the charcoal canister for leaks.
6. Can a loose gas cap cause the P0455 code?
Yes, a loose, damaged, or missing gas cap is a common cause of the P0455 code, as it allows fuel vapors to escape from the EVAP system.
7. How do I know if the gas cap is causing the P0455 code on my 2007 Nissan Sentra?
Inspect the gas cap for cracks, wear, or damage. Make sure it clicks when tightened. If the cap looks fine but the code remains, further diagnostics are needed.
8. What tools do I need to diagnose a P0455 code?
A basic OBDII scanner can read the code, but a smoke machine is often required to detect leaks in the EVAP system. You may also need basic hand tools for inspection and repairs.
9. How much does it cost to repair a P0455 code on a 2007 Nissan Sentra?
Repair costs vary depending on the issue. A replacement gas cap might cost $20-$30, while fixing a damaged hose or canister could range from $100 to $500, depending on labor and parts.
10. Will clearing the P0455 code solve the issue on my 2007 Nissan Sentra?
Clearing the code will temporarily turn off the check engine light, but if the underlying issue isn’t fixed, the code will return. Proper diagnosis and repair are essential.
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