2005 ford f150 4x4 xlt with 4.6 engine 125,000 shoeing engine code P0179, What is cure?

Question

2005 Ford F150 XLT 4x4 4.6l automatic is throwing engine code P0179, the truck has 125k miles. What to check first - oxygen sensor or fuel filter?

Answer 1

Recheck the code,you are not equipt with a fuel composition sensor, P0179,unless yo have a P0174 which is lean bank 2, If you have P0174 do a visual inspection for any ruptured vacuum hoses, which will cause a lean bank