hey guys , engine light came on about a month ago with the warning
code P0138 HO2S. then it went away after one day. well now its back
Circuit High Voltage Bank 1 Sensor 2 , would anyone care to give me
It means the post-cat O2 sensor is reporting a rich condition. This could
be caused by your cat converter not doing it's job, or by the O2 sensor
being covered in crud, it's wiring compromised, or the sensor is just plain
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