Baracuda

Hi guys so few days ago got 2 codes 0131 and 0420....did all the recommended fixes. ran injector cleaner and seafoam...also replaced upstream o2 sensor bank 1 as instructed. codes went away for a day then came back?
any help out there or do I just go trade it in. truck has 170k kms and new engine and turbos replaced at 132k kms under warranty. everybody I talk to has issues with these engines