Is this a leak issue or others bad issues?

[kakluote]

my car has bad issue recently

rough idel, and jerk in around 2000 rpm with light TB open,

just cleaned the mainfold and values for 1000KM

and the car can not hold the boost either, peak to 1.5bar then drop to 0.5, i have done the loggings

n75 duty cycle and boost, while request boost is working as normal
n75 duty cycle will drop to only 4.7% after around 4000rpm

that's annoying .....

any advise will be much appreciate?

 

[high_octane3541]

How did you clean the valves?

 

[kakluote]

By Uninstall the manifold

 

[Mataleao9380]

I'm assuming you weren't having any of these issues before you cleaned your valves. If so, it wouldn't hurt to double check your work to make sure you re-installed everything correctly.