N54 Boost oscillations N54

TiAgAu

Corporal
Nov 18, 2018
139
56
0
Australia
Ride
08 335i
Probably basic tuning for most on here, but i'm new to bmw tuning.

I'm looking to smooth the boost out as you can see in this log i'm getting abit of oscillations from 3200 to 4200rpm. why does PID drop WG when i'm not at target boost? oscillates up and down below target? Do i need to reduce the WGDC D-factor more?

TIA
 
Last edited:

chrisdfv

Corporal
Aug 29, 2017
270
216
0
Ride
E90 335i
Lower D-factor multiplier a bit. Raise base up to match closer to after PID. Should clean things up.
 
  • Like
Reactions: TiAgAu