Common Problems with Faulty Carbon Canister Solenoid Valves
Check Engine Light
Poor Fuel Economy
Rough Idle
Failed Emission Test
EVAP Purge Valve Replacement for Hyundai Kia OE 911-769 cp638
$19.99
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EVAP Purge Valve Replacement for Hyundai Kia OE 911-769 cp638
$19.99
Brand:
VorMotive
Product Features
【Restore EVAP System Performance】
Designed to replace failed purge valves and help restore proper fuel vapor control, reducing common EVAP system issues, fuel vapor leaks, and check engine light problems.
【Fix Common EVAP-Related Symptoms】
Helps address issues such as hard starts, rough idling, poor acceleration, fuel odor, excessive fuel consumption, and fuel nozzle popping during refueling.
【Direct Fit Replacement】
Engineered for a precise fit and easy installation. Matches original equipment specifications for reliable replacement without complicated modifications.
【OE-Style Electrical Connection】
Features an OE-style connector and design for secure installation and compatibility with the original vehicle system.
【Cost-Effective Repair Solution】
Restore your vehicle’s emission system performance without the high cost of dealership repairs.
EVAP System Check Engine Light Codes
| Common Codes | Possible Causes |
|---|---|
| P0440 | Evaporative Emission Control System Fault |
| P0441 | Evaporative Emission Control System Incorrect Purge Flow |
| P0442 | EVAP Emission Control System Leak Detected (small leak) |
| P0443 | EVAP Emission Control System Purge Control Valve Circuit |
| P0444 | EVAP Purge Control Valve Circuit Open |
| P0445 | EVAP Purge Control Valve Circuit Shorted |
| P0446 | Evaporative Emission Control System Vent Control Circuit |
| P0447 | EVAP Emission Control System Vent Control Circuit Open |
| P0448 | EVAP Emission Control System Vent Control Circuit Shorted |
| P0449 | EVAP Emission Control System Vent Valve/Solenoid Circuit |
| P0450 | Evaporative Emission Control System Pressure Sensor |
| P0451 | EVAP Emission Control System Pressure Sensor |
| P0452 | EVAP Emission Control System Pressure Sensor Low Input |
| P0453 | EVAP Emission Control System Pressure Sensor High Input |
| P0454 | EVAP Emission Control System Pressure Sensor Intermittent |
| P0455 | EVAP Emission Control System Leak Detected (gross leak) |
| P0456 | EVAP Emission Control System Leak Detected (small leak) |
| P0457 | EVAP Emission Control System Leak Detected (fuel cap) |
Main Uses of Carbon Canister Solenoid Valves
Click to learn how the carbon canister solenoid valve works
- Captures gasoline vapors
- Saves 3%–5% on fuel
- Balances fuel tank pressure
- Protecting the Activated Carbon Canister
EVAP Purge Valve Replacement Guide
- Check Purge Valve Function & OBD-ll scanner for Codes (e.g., PO440, P0441, PO443).
- Locate the Purge Valve.
- Disconnect the Electrical Connector.
- Use Pliers to Loosen the Hose Clamps.
- Twist and Pull the Hoses Off the Purge Valve, Remove Vacuum Hoses.
- Remove Mounting Screws / Fasteners, Unscrew or Unclip the Purge
Valve from Bracket. - Reinstall the New Purge Valve in the Reverse Order of Removal.
Post-Installation Verifcation
- Check fault codes with the OBD-ll scanner.
- Road Test: Drive for 10-15 minutes. Rescan to ensure codes do not
reappear.
Tip: If you have any questions about the product, please contact us.
We will reply and resolve within 12 hours.
Product Features
Direct Fit Replacement
Fix EVAP Problems
Reliable Performance
OE-Style Connector
Tested Quality
Cost-Effective Repair
Vehicle Compatibility
Specifications
| Feature | Details |
|---|---|
| Brand | VorMotive |
| Material | Plastic + Metal |
| Number of Ports | 2 |
| Vehicle Fitment | HONDA ACURA |
| OE Number | 911-769 PV433 2M1067 CP638 CP799 36162RMXA01 36162RN0A01 |
| Warranty | 2-Year Limited Warranty |
Product videos
Frequently asked questions
What does an EVAP purge valve do?
1. Lock in gasoline vapors to prevent them from directly polluting the air.
2. Send the vapors to the engine to burn at the right time, saving fuel and cutting emissions.
3. Balance the pressure inside the fuel tank.
4. Fix issues like fuel spraying or weird sucking noises when opening the cap.
5. How it works: Gasoline evaporates → Activated carbon canister absorbs and stores it → When the car is running, the solenoid valve opens → Vacuum sucks the vapors → Engine burns and uses them.
How do I know if my purge valve is bad?
1. Check for Abnormal Fuel Tank Pressure
After turning off the engine and letting the vehicle sit for about 10 minutes, slowly loosen the fuel cap.
Strong vacuum release or noticeable pressure release: May indicate an EVAP system problem, including a possible faulty purge valve.
A slight release of air pressure:Usually indicates normal EVAP system operation.
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2. Check for Refueling Problems
If the fuel nozzle frequently clicks off during refueling or you have difficulty filling the fuel tank, a clogged **charcoal canister** or faulty **EVAP purge valve** may be the cause.
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3. Scan for EVAP Trouble Codes
Use an OBD-II scanner to check for related trouble codes.
Common EVAP codes include:
P0443 – EVAP Purge Valve Circuit Malfunction
P0444 – EVAP Purge Valve Circuit Open
P0451 – EVAP Pressure Sensor Performance Issue
P0457 – EVAP System Leak Detected (Fuel Cap Loose/Missing)
These codes may indicate an issue with the purge valve or other EVAP components.
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4. Bench Test the EVAP Purge Valve (Most Accurate Method)
For a more accurate test:
1. Remove the purge valve from the vehicle.
2. Connect the valve to a 12V power source (vehicle battery).
3. Listen for a clicking sound when power is applied.
4. Check airflow through the valve:
Without power: The valve should normally remain closed and block airflow.
With power applied: The valve should open and allow airflow.
If the valve does not click or cannot properly control airflow, it may need replacement.
Is this part easy to install?
Installing the solenoid valve is pretty simple, just replace the original part. If there was a fault code before, use the OBD to clear it, and take a short test drive—if the light doesn’t come back on, you’re done.
Quick troubleshooting (for fast fixes if problems appear right after installation):
Check engine light: make sure the plug is secure and the hoses aren’t leaking or disconnected.
Idle shaking: most likely a vacuum leak or the intake/outlet hoses are reversed.
Still misfiring: the charcoal canister is clogged, and it needs to be replaced at the same time.