Evaporative Emission Control System Leak Detected (Very Small Leak)
Plain-English meaning
The vehicle's onboard diagnostic system has detected a very small leak in the evaporative emission control (EVAP) system, which is responsible for capturing fuel vapors to prevent them from escaping into the atmosphere.
What to check first
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What not to replace yet
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Stop driving when
It is generally safe to continue driving; however, if other symptoms such as strong fuel odor or performance issues arise, seek professional inspection promptly.
Related symptoms
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Owner steps
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Likely causes
Loose or damaged gas cap (medium)
Cracked or disconnected EVAP hoses (medium)
Faulty or damaged EVAP purge valve (medium)
Defective charcoal canister (medium)
Small leaks in fuel tank or EVAP system components (medium)
Shop steps
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Follow-up questions
Have you recently refueled the vehicle and checked the gas cap?
Is the Check Engine Light steady or flashing?
Are there any noticeable fuel odors around the vehicle?
Have you experienced any changes in vehicle performance?