I am experiencing my engine runnunig rough. The codes state rich bank one/two.

What is your question?

This is happening even though I have changed all my coils and all my spark plugs which a ASE certified mechanic told was the problem. I also had new injectors installed. After they were changed it ran good for about 5 miles and then it started again. Can this be the oxygen sensors, catylitic converter, or another problem.