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What is your question?
Code shows O2 sensor/catalytic converter error. I checked on line to see how to repair the issue. On line it said there were 2 sensors, however, the auto pairs staff said there are 3. I wanted to know for sure before I change the 2 upfront and find that I need a third. The auto parts staff wasn't sure of the location of the rear sensor and could find it and gave a guess as to where it might be.
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Hello, the MKX has 2 oxygen sensors pre-catalytic converter, and 2 "catalyst monitor" oxygen sensors after the converters. One before and after the converter on each engine "bank" of cylinders. Use this link to find some shops near you that can help with your concern: www.repairpal.com/repair-shops