Long story short. G8 has mail order tune that is locked from previous owner. I'm getting a new unlocked pcm in the future to tune myself. I've been getting comfortable with the scanner and such, just playing around in the mean time. Anyways, logging some stuff tonight was scary. WOT commanded afr says .89. It's around there early but around 4800rpms it jumps to like .96 actual, even tho commanded is .89. Why the discrepancy? Not trying to melt pistons here. If not and easy answer, what should I look for and or log to check. Just trying to learn, thanks.