Hi Holmes
along! Where you from?
I have heard of this and I did get it a bit in my old ST. Apparently it can be caused by a sticky solenoid on the turbo which is a cheap repair. Others say it is normal. Mines would sometimes hold at the 1/4 mark for a few seconds then move up but under hard acceleration it would go straight to the 3/4.
Also they do not boost past 1/4 in first.

I have heard of this and I did get it a bit in my old ST. Apparently it can be caused by a sticky solenoid on the turbo which is a cheap repair. Others say it is normal. Mines would sometimes hold at the 1/4 mark for a few seconds then move up but under hard acceleration it would go straight to the 3/4.
Also they do not boost past 1/4 in first.