clio 1.2 y reg?

changed temp control sensor near the throttle body cleaned throtle body also put new plugs and coil stil stalls and cuts out splutters at 6000 revs, put the throle to 2000 revs on and take it off it starts idleing as thou the petrol was not getting there ,.but starts up first turn of the key. the engine managment light has come on now