How to clear P0101 and P0172 codes on 2009 Toyota Matrix 122k miles, automatic trans.,1.8 liter

Hello out there! The check engine light came on after I replaced the air box and air filter. I had replaced the air box ( which holds the air filter ) because the one of clips that hold the box closed did not work due to a piece of the box having broken off. I tried cleaning the mass air flow sensor ( with the proper cleaner ) which did not succeed in keeping the codes ( P0101 and P0172) from coming back. Next I replaced the Mass air flow sensor with a new OEM Denso brand sensor. Still no luck with keeping the codes from coming back. Any ideas that are easy to do that doesn't require any specialized tools or skills?