hi everybody i could use some help with the above .whot i ve done so far :changed dizzy and cap, blue sensor , map ,changed spurk plugs and cables , cleaned idlevalve, changed fuel filter.cleaned vacum pipes . fuel presure is 3bar at idle and 3.5 bar with vacum removed,but the fuel pressure gauge trembles alot ,its doing 0.5 bar up and down. turbo spins at idle its a t3 garet. help appreciated