Hi guys,

I'm looking over boostcontrol on MED17.5 (2.0TSI). as I have a classic problem I guess.

When asking for boost say 1.3bar relative , I do get that boost BUT, at boost onset, I get N75 correction (from 96% down to around 75%) at 0.8bar relative (this is the stock boost level, so it looks like it activates the Proportional part of the PID control, I guess) then it corrects back to 96% and lets me go to 1.3 bar, the boost control is fine once it is close to target. This feels like a hesitation of the car.

Is there anyone who could help identify why this happens, why the N75 doesn't wait till closer to 1.3 to "activate" the PID or is my problem something else ?

I know people use tricks like building boost gradually in order to overcome this or tune the N75 limiter map to around 75-80% in the lower rpm's so you wouldn't feel this, or just kill the P-term in the lower rpm region to reduce the effect, but i'm looking to understand why this happens, which map(s) is (are) responsible.

Thanks for any help.

So I bought your VehiCAL, and it looks like I need the Advanced Protocols + patch the ECU to be able to log?

Is there a cheat sheet of parameters to log for specific issues?

What about using CWAGTV = 4 and KFWGV as precontrol?
Only thing here confuses me - using rlsol as the axis, what if i patch it to plsol ?