so I was driving my Evo X gsr about a week and a half ago on the highway at constant throttle in 5th gear vaccum was around -12 I don’t hit boost in 5th gear because I know it isn’t good for the car but I was on the gas in 5th and felt the car lit back a little didn’t think anything of it kept driving still in 5th never let my foot off the gas and I felt it happen again but this time I was watching my afrs and I noticed when it lugged back it spiked lean for a second then went back to 14 but I got home from work that day and my brother was driving my car then all of a sudden my check engine light came on I checked it out and it was the code p0171 system lean bank 1 and ever since that day the afrs are all ****ed up it lean spike s a handful of times I’m on the way highway now and any wot. Pulls are 10.00 if any of you know what the problem could be let me know I am fbo tuned on 93 octane