Originally Posted by Mitsy FQ
removing the plunger and spring will allow full bleed most boost maps are filled with ff which is max duty cycle.
An amul valve as used on the sierra cosworth is not a particularly good boost control valve it is cheap and should be replaced with a decent valve
......so after all this, and i was only trying to FUCKN HELP...does this method work>>??.....edited to say.......if their was an electrical problem with the valve or wireing....