Hi all in need of some help right diving to and from work today and the car wouldent rev past 3000 rpm it would reatch 3000 rpm then judder vilantley and eventually when i put my foot to the floor the car got all choked up and would die. But if i accelerated a little gradully the revs would go higher then whilst stationery it wouldent rev past 4000 rpm never used to do that then it died and when i tried to start it the engine would just shake and judder sitting below 1000 rpm and would not rev when i accelerated it would die. Please help me Thanks