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Check engine light on due to slow responding two way bypass valve on Honda Civic

Problem Description and Possible Solution
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.
Problem Data
RepairPal Verified
Average mileage: 97,000 (97,000–97,000)
1 model year affected: 2001
3 people reported this problem