What part do we need to fix P0171 Jeep

Question

We have a 2004 Jeep Liberty and have these error codes and need to know what parts we need
P0171, P0172, P0131,

Answer 1

P0171 Fuel trim lean Bank 1

P0172 Fuel trim to rich Bank 1

P0131 02 sensor circuit low voltage bank 1 sensor 1

Any exhaust leak right at the 02 sensor on Bank 1,? That area should be checked