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Honda Civic Si Problems

Check Engine Light Due to Primary O2 Heater Failure on Honda Civic Si

Problem Description and Possible Solution

A failure of the Primary O2 sensor heater can cause illumination for the Check Engine Light. Replacing the O2 is required to repair this issue.

(1 person reported this problem)

Honda Civic Si Vehicles With This Problem

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Average mileage: (–)
1 model year affected: 1999
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