I am e-tuned and running into what seems to me a mechanical issue. Before symptoms, here are the applicable mods:

- ID1000s
- Walbro 450LPH
- E85
- MAP V1 3.5" intake
- Boomba rail
- Cobb 3 port
- MAP Turbo back
- MAP UICP
- ETS 3.5"

I am getting a consistent rich condition from 4200-4400 RPM. New orange fuel pump relay and no boost leaks (I have a tester). Also, occasionally hard to start. Car pulls fine, but the rich condition is odd. Log is attached.

 

.4 afr, I dont see it as a big deal, id be more worried about that knock

 

We fixed that. This is an older log.