Honda Civic Code P0139
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P0139 Code: O2 Sensor Circuit Slow Response (Bank 1, Sensor 2) - In The
Forum downpipe cel 0l fixing install after civicx wire so partially slack o2 sensor ll left much also there add O2 sensor replacement for 2006 honda accord 4cy se P0139 code: o2 sensor circuit slow response (bank 1, sensor 2)
