Hello all...I was just surfing and found this site and thought maybe I could get a little help. I have a 94tercel with a couple hundred thousand miles on it. It has a new head gasket and head,radiator,fuel pressure reg. filter,tune up stuff.......and still when it warms up it wont run right. Seems to run smooth in park but when I shift into gear it wants to miss and die. It seems to run right when cold. S I am wondering if anyone else has had this problem or if there might be a vacuum actuated valve that opens when the engine warms up??? Any ideas> Thanks everyone for any help. (IMG:style_emoticons/default/liebe011.gif)