[omniscient87]

https://datazap.me/u/omniscient/e25-...og=0&data=3-24

I recently purchased an 09 335xi. The PO did all 6 injectors last October as well as plugs. I had the valves blasted about two weeks ago and just installed vrsf everything.

Even before the modifications I was seeing high 12- low 13 afr even on a stock map. Right now I'm on a mhd e25 map, I have inlets, cat less pipes, 7" core, charge pipes and an exhaust.

I included a quick log, not to extensive but it shows what I'm talking about. As far as I can see the low and high pump areally ok, there is a dip from a throttle closure probably because of the inlets, I think there's a slight timing correction if I remember right around where the throttle closure is.

Is this just because I'm at 5300 elevation? Or is there something I'm missing. I've been tuning older platforms for almost 15 years but this is still new to me.

[Antetokounmpo]

What's wrong? You're concerned since you're on E25 now? High 12s on the N54 is normal for under boost.

This car uses lamda, for instance a 12.5 afr just means lamda * 14.7. That's not the true AFR. Anything in the mid-high 12s you're fine regardless of fuel.