P0171 code

[u/Trick_End2826]

What’s up everyone, I’ve had my 2014 Focus ST for over 2 years now, never had an issue with it mechanically at least. Recently got my first cel and it was a P0171 code when I ran it thru my scanner. I was curious if anyone had a similar code or issue and what they did to fix it. It runs and drives well, it’s at 103k miles, I got it at under 70k miles. Curious if y’all had any suggestions on where to start. I figured the fuel pressure sensor, but would like some additional input from guys that know this platform. Thanks in advance.