changed the inlet gasket and STILL she idles all over the place. blocked the throttlebody and it still doesnt cut out. therefore,an air leak! i need to no what else could be causin this please as words fail me to describe my frustration at this fuckin problem! would a fucked idle control valve cause this? please please,i dont want ANY stupid suggestions, only hard factual info that leads to the resolution of this pish. cheers in advance