I was out tuning with what I though was the correct setup for Lambda based on the preconfigured maths. I kept overshooting my target by a good percentage, kept wanting me to lean it out more and more and by a big percentage. So I started messing with the units for commanded eq ratio and realized on that particular pid Lambda is actually phi and vice versa. So in the end I had to create a custom math that utilized that pid as phi instead of lambda. see pics below.
as you can see after two flashes it had pushed me incredibly lean and I didn't even know it. I went and validated my new custom math and it works correctly now. Tomorrow I'll dial my map back in to where it needs to be. Thankfully I didn't pop a piston just in time for TX2k.
Logging with V3.0.55
vehicle being scanned is Gen3 2001 z06 2bar OS.