have a 90 celica 5 spd 5sfe motor and i am trying to figure out whats wrong with it.. it starts and runs but with a very rough idle when warmed up and when i go drive it after awhile it started to miss when a load got put on the engine i.e. going up a hill or accelerating untill now ...now it still starts and has a rough idle warmed up but when you take off it bounces like somone trying to drive a manual for the first time and i no for a fact that its not the clutch doing it so my question is what the heck do any of you think is wrong with it??? could it be the timing belt?? i just replaced the plugs and wires and distributor innards and that did not fix the problem also i put injector cleaner in it and still didnt fix the problem but it helped out a lil so i am at a loss for what it could be... and also my check engine light is not on.