until Not I still cant figure out whats wrong with my motor...i already tried everything from the old THREADS..okay here we go i really need help with my motor!

the rpm flickers UP AND DOWN when my motor is @ normal temp BUT when its cold my motor drives just fine! i already changed the spark plugs, wires, Maf is still good, Injectors fine, idk what else could it be!!
i need Help real bad i ran out of ideas...

thanks
- s13boosts!