s14 vvt not boosting??

[juice]

Myself and alan opel(mainly alan of course) fiitted a hks front mount and a metal suction pipe this evening to the s14. Everything is grand, car not missing, very smooth, before fitting it was boosting around a bar, now its only boosting .4 .5 bar??? Th only thing we left out is the small vacum that goes into the suction pipe after the afm, what does this do?? could it be causing the lack of boost??? Any other ideas

[driftysleepy76]

my 180sx only boosts at 0.5 as well and ive an t28bb turbo and japspeed front mount!

[alan opel]

also removed egr as it was blocked off anyway, no boost controller just standard solenoid.

[juice]

anyone????????????