So my engine light came and code reader shows thjs.. i think its the bank 1 sensor 1... is this correct and how much does the oart usually cost.

 

bank 1 is the catalytic converter closest to the firewall..sensor 1 referring to the oxygen sensor. you can get one from the local auto parts just make sure its the NTK brand as the more generic ones usually dont work so well. if you have any mechanical know-how the sensor should be pretty easy to replace. should cost about $80-$110 depending where you purchase it from.