All,
I am getting a code on my car associated with the fuel trims being too lean and I'm looking for a little guidance.
The car was modified in 2021 with ARH headers (catted) , MSD intake, soler performance, ported 95mm throttle body, and a rotofab intake. I never had any issues with a CEL until maybe a year or two ago. I would occasionally get this code if I let the car sit for a while (on the order of a month or more), but the light would clear the next time i filled up on gas within minutes. This lead me to believe that perhaps I had bad gas and just needed to refresh the tank, though I'm now doubting that is the case.
Today, the light came back, but I have been driving the car regularly for the past few weeks, and filled up last week. I was at a quarter tank of gas, so decided to fill up and the light did not clear. I then manually cleared the code, but it returned after about 30 miles of regular driving (mix of city and highway).
Given that I now think I may have a more serious underlying issue (probably should not have ignored the warning signs), I was looking for some tips on what I should investigate and simple things to look for before taking it to a shop.
This is a learning experience for me, so I appreciate any and all help!
I've uploaded a log with a few minutes of driving for any experts to review, but it only shows a few sensors because i'm not sure what is useful. Link below. If there is anything else i should include in the log which would be helpful, please let me know.
https://drive.google.com/file/d/16Sm...usp=drive_link