P0443
Evaporative Emission Control System Purge Control Valve Circuit Malfunction
📖 What Does P0443 Mean?
The EVAP purge valve that controls fuel vapor flow from the charcoal canister has an electrical problem.
Symptoms
Check engine light, failed emissions test, fuel odor, poor fuel economy.
Common Causes
Faulty EVAP purge valve, wiring problems to purge valve, poor electrical connections, valve stuck open or closed.
Possible Solutions
Replace EVAP purge valve, repair wiring to valve, clean electrical connections, test valve operation.
Recommended Parts & Tools
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📦 Parts Needed
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Frequently Asked Questions about P0443
How serious is P0443?
This code has a medium severity level. This should be diagnosed and repaired soon to prevent further issues.
Can I drive with P0443?
You can typically drive short distances, but have it diagnosed as soon as possible.
How much does it cost to fix P0443?
Repair costs vary depending on the root cause, but typically range from $100-300 including parts and labor.
Related Diagnostic Codes
Other codes that may appear with P0443
Evaporative Emission Control System Malfunction
Emission Control System Code P0441
EVAP System Leak Detected Small Leak
Evaporative Emission Control System Vent Control Circuit Malfunction
EVAP System Leak Detected Large Leak
💡 Why These Codes Are Related:
- • Similar Issues: Same root cause or component failure
- • Related Problems: Often occur together due to system interactions
- • Sequential Codes: Progressive failure stages or multiple sensors
- • Same System: Components within the same automotive system