P0175 Chevrolet - best solution

Question

2003 Chevy Silverado 1500 4.8
Whats the best solution to fixing this code problem?
Is it the O2 censor? and how would I determan which one is bad?

Answer 1

P0175 Fuel trim too rich Bank 2

When it comes too P0175 mechanical condition meed to be ruled out, a cylinder with a low compression can cause P0175.

Here is a typical fuel pressure regulator, fuel seep into the intake manifold and cause a rough idle , P0300 and a P0175,when the vacuum hose was removed fuel was seen squirting out,