P0443Low urgency
EVAP Purge Control Valve Circuit Malfunction
Emission · EVAP System
✅ Safe to drive — fix before emissions test.
What this means
The EVAP purge valve circuit has an electrical fault. This valve controls when fuel vapors flow from the charcoal canister into the intake manifold. A failed purge valve causes rough idle and emissions failures.
Likely causes
- Failed EVAP purge valveMost common
- Wiring fault at purge valve connectorCommon
- Faulty PCM output driverLess common
Estimated repair cost
EVAP purge valve replacement$75 – $200
Wiring repair$75 – $200
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Frequently asked questions
What does P0443 mean?
The EVAP purge valve circuit has an electrical fault. This valve controls when fuel vapors flow from the charcoal canister into the intake manifold. A failed purge valve causes rough idle and emissions failures.
Is P0443 serious?
Safe to drive — fix before emissions test.
How much does it cost to fix P0443?
Repair costs for P0443 range from $75 – $200 depending on the root cause and your vehicle.
Can I drive with P0443?
Yes, the vehicle is safe to drive. Schedule a repair at your convenience.