You are correct. Bank 1 and 2
. I changed out the filter and am adding injsector cleaner at every fillup. So far code hasnt returned. As a previous poster said , it was stumbling at start up for a bit. Havent had that problem either. Great idea spraing carb cleaner when running and watching the values on the code reader. Although I think I solved the problem. Been about a week and no engine light yet. Thanks folks.