Car stubble's when I first give it gas then goes but intermittently stubble's I think it's the 02 sensor I replaced one but not both I had the obdII read at auto zone said that it could be the o2 and lean on the right bank so I think it could be the injector also... I have pulled the plugs and there white like lean... any help would be appreciated.

To me, it sounds like a single cylinder misfire happening here. If the check engine light blinks while the stumble occurs, then you could be correct in saying the injector.
However, this could also lead to the Ignition Coil (with Igniter) on the plug.
With scanner equipment, you would be able to identify which cylinder it is. Simply marking and swapping the coils would identify that.
Code P0171 (system lean) would most likely point to a dirty mass air flow meter which replacement is usually the answer.
See if you could go back and get that specific code(s). I can give you detailed information for that code.