2002 Mitsubishi Montero Sport 3.0L V6 Overheating, and code P0174 and P0154

Question

2002 Mitsubishi Sport 3.0L V6 Overheating, and code P0174 and P0154 new radiator, 02 sensor, exhaust manifold, hoses, leaking radiator fluid??

This Mitsubishi is overheating and leaking radiator fluid. Why? I don't know :( New radiator, Bank 2 sensor, good hoses also new exhaust manifold. Fixed P0154 code but P0174 came back so 4 th time took the car back shop and P0154 came back they checked the sensor and code fixed but P0174 came back and now leaking radiator fluid and the car is overheating. What do I do next? Shop told me the lower intake hose needs to be replaced I told them I said ill be right back and I left..The hose is fine that's not where it's leaking.!!?!!

Answer 1

P0154 MITSUBISHI - Cylinder 2-3 Heated Oxygen Front Sensor No Activity Detected
Read more: https://www.autocodes.com/p0154_mitsubishi.html

P0174 MITSUBISHI - System Too Lean Cylinders 2-3
Read more: https://www.autocodes.com/p0174_mitsubishi.html