Hi friends, how are you?
I'm having some problems with a Grande Punto Abarth. It had a lot of upgrade as turbo (TD04), injector (kit esseesse), and all sensor of GP abarth SS, Pop off Bonalume.
Now i can't understand why, the car don't charge the pressure..If i disconnect the wastegate flue, i have only 1.4 peak pressure(2.4 with atmospheric) in mainfold.. If i connect it, i read only 0.5bar of boost(1.5 with atmospheric pressure).
I try to disconnect popoff, change pierburg valve, but i don't fix the problem.
Have you got some ideas?

I try to log the pressure, and i found that, from 2500rpm, to 4500rpm, the ecu have 2.3bar boost target.. but in the mainfold there is only atmospheric pressure (0.9-1 bar).. On high rpm, the turbo charge some pressure but it's not the pressure he had has target..
and in the same time the wastegate open, the pressure fly down.

I was thinking il coul be a hole in the intercooler..
Thanks for your help
Filippo

Have you changed the boost pressure sensor?

Possible problem with boost pressure sensor. Please check your original code and aftermarket an post here. There are different code on Abarth SS sensor