Terrywoo

I've just bought a my99 uk turbo wagon, has a hks supper dragged full exhaust a hks induction kit, bailey dv , the previous owner replaced all boost pipes with blue hose, now there's no restricter pill fitted, has a manual boost controller fitted but will only go to 10psi, have tried turning it up no difference, had a old mbc knocking around so fitted this directly in between actuator and turbo, car was reading 20psi in first down to 15psi and dropping through the gears , ecu had code 22 knock sensor logged, removed mbc and cleared codes, went out for a blast, still at 10psi max, no codes registered, just doesn't fell fast enough any ideals