P0172, P0175, P0136, and P0446. What could cause all of these codes and how to fix it?

Question

2002 Kia Sedona V6 with codes P0172, P0175, P0136, and P0446. What could cause all of these codes and how to fix them?

Answer 1

P0172 KIA - Bank 1 System Too Rich
Read more: https://www.autocodes.com/p0172_kia.html

P0175 KIA - Bank 2 System Too Rich
Read more: https://www.autocodes.com/p0175_kia.html

P0136 KIA - HO2S12 Circuit Fault
Read more: https://www.autocodes.com/p0136_kia.html

P0446 KIA - EVAP Emission System- Vent Control Valve Circuit
Read more: https://www.autocodes.com/p0446_kia.html