
i have a 90 3s-ge and it has trouble starting at first it will crank and crank then when it finally does start it idles at 2500 rpm then will drop to 1500 u give it more throttle and it will rise to 4000 and hesitate and if u dont play with the pedal right it will die. then all over again. car was bought from a old man who has let it set for about 8 months ive changed the old fuel out with 93 oct. replaced spark plugs and valve cover gasket and spark plug tube seals because it was leaking some oil into 3 and 4 cyclinder. what could bbe wrong with this car?