Checked for codes. Need Lamens and help

[5SpdSHO]

So I did a KOEO and I believe I caught all the right codes.

176 (M) Oxygen sensor not switching - system is or was lean Left or Front HO22SSS - Fuel control

311 (R) AIR system not working - Single, Right or Rear HO2S - Air Injection

511 (O) No power to PCM pin 1 or bad PCM (processor)

542 (O,M) Fuel pump open, bad ground or always on - - Power / Fuel Pump Circuits

Not exactly sure what all these mean/how to fix these problems. Any help is appreciated.

Thanks in advance,

Matt