Hey so I had an issue with my rsx and was wondering what it could potentially be. I have a k24 swapped rsx that’s running on hondata k pro. My car runs lean and was wondering what it could be. It’s weird because sometimes I’ll crank it up and it’ll start off at like 12.3 and makes it way to 15.3 and other times the car won’t start without me gassing it (meaning it’s lean asf lol) it also moves around a lot and will never sit at a proper reading. The guy did mention the car needed a retune I also had a problem with when I would fill regular gas the tune would give too much fuel at idle I learned from the first time and never filled regular again I swear Lol but yeah if u guys could help me out that’d be great. I was also thinking it could be a potential vacuum leak