ok, its a 1993 impreza type ra, just been out and about and opened it up on the duel and whenever i change gear its started hesitating! first it was stuttering so let of and tried again and it was fine, then changing from 3rd to 4th it just died! so let of and tried again and it was fine! there no miss at idle or while going through the gears! could it still be the plugs ?

thanks in advance
james

 

Bttt