N54 *solved* Oscillations and other shenanigans

[2aesthetic4me]

Can somebody please help me fix this horrible graph? I noticed that my WGDC Base is above the after PID which is definitely not good. I disabled PID completely in order to get my base values right. The oscillations are probably because i tend to overboost and the system tries to correct with throttle adjustment, right? DSC was not off, but i was in 4-6th Gear up to 220km/h, so i guess the DSC shouldn't intervene. What would be the next smart move in order to get this graph nice?
Logs

 

[carabuser]

The problem is caused by the boost target itself. You can see the base value just responding to the boost target changing.

 

[2aesthetic4me]

The problem is caused by the boost target itself. You can see the base value just responding to the boost target changing.

Thank you for your response. So my main goal should be to "normalize" the boost target? Which tables do I have to keep an eye on?

 

[carabuser]

Not really, the boost target shouldn't be moving like that at a steady pedal position. I don't know what could cause that, but simply trying to flatten the boost target is treating the symptom not the cause. I would suspect there is some changes made to the file that are causing the issue.

The best approach is to start from scratch and only change tables that you need to. Start with a stock bin, if you want more timing or less fuel, then tweak those tables and log to make sure you get the expected result. If you then want more boost, increase the load target tables until you get the boost target you want.

 

[2aesthetic4me]

Not really, the boost target shouldn't be moving like that at a steady pedal position. I don't know what could cause that, but simply trying to flatten the boost target is treating the symptom not the cause. I would suspect there is some changes made to the file that are causing the issue.

The best approach is to start from scratch and only change tables that you need to. Start with a stock bin, if you want more timing or less fuel, then tweak those tables and log to make sure you get the expected result. If you then want more boost, increase the load target tables until you get the boost target you want.

Thank you again for helping. Turns out I forgot to adjust the blow off valves correctly after trying something out. After adjusting them i hit boost target as wanted (1,4 bar) and no oscillations. After adjusting WGDC Base I want to implement PID again and then add some timing, in order to gain a bit more torque under 2k rpm, do you think this would be a good approach? I don't want to add boost under 2-2,5k rpm in order to take some load off the engine

 

[carabuser]

I wouldn't add more timing at low load, it's already optimised in that area.