Perform a smoke test, replace the gas cap, or pressurize the evaporative system with compressed air to address a small leak in the evaporative emission control system.
Perform a smoke test. When there is a DTC for a small leak in the evaporative emission control system, performing a smoke test is crucial. This test helps identify the specific location of the leak by introducing smoke into the system and observing where it escapes, aiding in efficient repairs.
Replace the gas cap. A common cause of small leaks in the evaporative emission control system is a faulty gas cap that fails to seal properly. Replacing the gas cap may resolve the issue, especially if the cap shows signs of wear or damage.
Pressurize the evaporative system with compressed air. Pressurizing the system with compressed air can also help detect leaks by pressurizing the system and listening for hissing sounds or using a special tool to detect escaping air, assisting in locating the leak.
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