codes 2177 and 2187 on 2009 mazda 6

Hello, the P0101 code is related to a concern with the mass air flow sensor. The P2177 and P2187 show a "lean" running condition -- note that you did not indicate which engine you have, so I selected the 2.5L for reference. Since we are seeing concerns with mass air flow and lean running, I would suspect some kind of air intake issue, vacuum leak, or MAF wiring issue. Note that those codes do not say you should replace parts; they indicate a need to perform testing. The MAF and oxygen sensors may have been just fine, and you may have wasted good money on them! A proper diagnostic test by a qualified skilled technician is needed here.