Ramsey Maness
Ramsey Maness answered question
   Essentially this code is relaying a fault detected by an Oxygen sensor. Bank 1 - the one in front of the  Catalytic Convertor, Bank 2 - behind the Convertor. So, should you replace the sensor? NO - not yet. Should I replace the Catalytic Convertor? NO - not yet.
   You must try to … Read more