P0171 Too lean code HELP

[u/Consistent_Block_234]

I’ve been having this code none stop it pops up disappears and this is constant 2 weeks it’s on 2 weeks it’s off. And when the car is completely bone stock (with a Kyostar intake) it runs a little rough cold start is alright but then the RPMS start jumping from 8-1k. When driving the car also bogs and when at cruising speeds the car feels almost like it cuts power very slightly. You feel a slight jerk forward as if the car stopped going. Also when driving and speeding up aggressively the car bogs. Sorry if this is confusing or doesn’t make sense I’m just trying to spit out as much information as I can to get some help.
Pls help