Engine sign with error code P2191

Question by Ahmadsalah posted 5 months 1 week ago in Acura

engine sign light is on in my car and when i check it the error code found P2191 "system lean at higher load (multiple) (bank 1)".

 

please advice if this result from oxygen sensor fault? or there are other reasons? 

 

car is K5 2015 hybird engine (2.0)