Problem Reports » Check engine light on due to slow responding two way bypass valve

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Honda Civic

 

Report: Check engine light on due to slow responding two way bypass valve

Honda Civic Problem
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Model Year Affected: 2001

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On certain models a slow responding two way bypass valve can cause the Check Engine light (MIL) to illuminate. This ususally occurs in cold weather. Replacing the bypass valve is needed to repair this issue.

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