When engine is cold car drives okay 7/10 not fully what it shud be but better than it is when the engines warm, when its warm thers no pwer when accelerating, when i go over 3000rpm the power kiks in, i have changed the air filter to the original one,air mass meter,ngk spark plugs new ht leads and also a new coil pack and also used fuel treatment,,, what could it be, dunno what else to try?