The OBD code P0455 for Hyundai indicates a large evaporative emissions leak.
It affects the EVAP system, leading to the Engine Light being ON and a fuel odor due to vapor release.
Common causes include a loose fuel cap, EVAP system leaks, or damaged components.
While not an immediate threat, it can impact emissions.
A possible fix involves checking the fuel cap, inspecting the EVAP system for leaks, and examining wiring/connectors for damage.
| Repair Importance Level | 3.33 (Out of 10) |
| Estimated Repair Time | Approximately 1.0 hour |
| Repair Difficulty Level | 10.0 (Out of 10) |
Symptoms of the Hyundai p0455 OBD Code
The specific fault code P0455 on a Hyundai indicates a large evaporative emissions leak.
- Symptoms: Engine Light ON.
- A noticeable fuel odor may result from fuel vapor release.
Causes of the Hyundai p0455 OBD Code
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Possible reasons for Hyundai fault code P0455 include loose gas cap, EVAP system leaks, or faulty purge valve.
- P0455 can be caused by a missing or loose fuel cap.
- An 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.
Fixing Hyundai Error Code p0455 Step By Step
Repairing a Hyundai P0455 code involves inspecting the EVAP system for leaks and addressing any issues found.
- To fix Hyundai OBDII code p0455, first, review the ‘Possible Causes’ mentioned above.
- Visually examine the corresponding wiring harness and connectors.
- Ensure to check for any damaged components.
- Inspect the connector pins for signs of being broken, bent, pushed out, or corroded.
- Check the fuel cap to ensure it is tight and sealing properly.
- Inspect the EVAP system for any leaks or damage.
- Replace the fuel cap if necessary.
- Perform a smoke test on the EVAP system to identify any leaks.
- Replace any faulty components such as the EVAP purge valve or EVAP canister if needed.
- Clear the fault code and test drive the vehicle to verify the repair.
Cost Of Fixing Hyundai p0455 Fault Code
Diagnosing and repairing Hyundai P0455 typically involves checking the EVAP system for leaks.
The cost to diagnose and fix a Hyundai OBD code P0455 typically ranges from $75 to $150 per hour for labor rates.
With an estimated repair time of 1. 0 hour, the total cost could be around $75 to $150, depending on shop rates and the complexity of the issue.
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Details of the Hyundai p0455 OBD Code
Hyundai P0455 indicates a large evaporative emissions leak in the vehicle’s fuel system.
OBD code P0455 for Hyundai vehicles indicates a large evaporative emissions leak.
This code is triggered by the Engine Control Module (ECM) when it detects that the fuel vapor control system has a leak larger than allowed by the manufacturer.
The system involved in this code is the evaporative emissions control system, which is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere.
A common cause of this code is a loose or damaged gas cap, but it can also be triggered by leaks in the system’s hoses, valves, or charcoal canister.
Mechanic’s Tech Notes
Detailed information on diagnosing and repairing Hyundai P0455, which indicates a large evaporative emissions leak.
To diagnose Hyundai OBDII code P0455, start by inspecting the EVAP system for leaks, including the gas cap, hoses, and purge valve.
Use a smoke machine to pinpoint leaks.
Check the EVAP system pressure sensor for proper operation using a scan tool.
Verify the integrity of the EVAP system hoses and connections.
Use a voltmeter to test the EVAP purge control valve for proper voltage and ground signals.
Inspect the EVAP canister for damage or contamination.
Clear the code after repairs and perform a drive cycle to ensure the issue is resolved.
FAQ
Common causes of OBD code P0455 in a Hyundai: loose fuel cap, incorrect cap, EVAP system leaks. Check cap, inspect EVAP system for leaks, and wiring/connectors for damage.
A P0455 code in a Hyundai indicates a large EVAP system leak. Ignoring it can lead to fuel economy issues and emissions problems. Check and repair EVAP system components promptly.
To diagnose and repair a P0455 code, check fuel cap, inspect EVAP system for leaks, and visually examine wiring harness and connectors for damage or corrosion.
Wrap Up
If your Hyundai is displaying OBD code P0455, you may notice a strong fuel smell, decreased fuel efficiency, or a loose gas cap.
This code typically indicates a large leak in the evaporative emission control system, caused by a loose or damaged gas cap, cracked EVAP system hoses, or a faulty EVAP purge valve.
To address Hyundai OBD code P0455, start by checking the gas cap for proper sealing and inspecting the EVAP system hoses for cracks or leaks.
Test the EVAP purge valve for proper operation and ensure all connections are secure.
If necessary, replace
