Does a P2096 code mean its an oxygen sensor? 100%

Question

Check engine light came on. P2096 code...internet says O2 sensor....is this 100% the diagnosis?

Answer 1

P2096 Post catalyst fuel trim lean Bank 1

Is there any exhaust leak just prior to the catalytic convertor. This code condition depends on the engine size, where it is the 02 sensor that is the cause,