P0174 code

[Edyuly]

How is everyone. Maybe someone can send me in the right direction I have the following mods in a 15 gt manual trans.: cat delete, jlt intake and sct tune from bama also just install a vortech boost a pimp in preparation of the Paxton supercharger.Car has 3026 miles. First time to track with it ran a 13.0 @112. This weekend. finished the night on my way home the yellow engine light came on checked the code with the sct and got p0174 code which is lean bank. I reset the light and today got the code again so I raised the car and checked to see if the O2 sensor came loose but everything looks fine what should I check next ? Is this something to be worried about?


Thanks

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