Where is the catalyst converter at for 2011 ford fusion

Question

Can i do it myself exactly where is it located

Answer 1

P0420 Catalytic below threshold

Before the catalytic is replaced, the fuel trim and the function of the 02 sensor has to be inspected first this would be to your advantage.

​ Here the location of the catalytic convertor

​ The downstream 02 sensor should be inspected prior to replacing the catalytic convertor. Here a downstream 02 sensor that is faulty has set a catalytic convertor code.

​ The downstream 02 sensor replaced, This resulted in correcting a false catalytic convertor code, A functioning catalytic convertor will have the downstream 02 sensor being above 650 mv .