Starts but wont run

Make sure you plugged the cam sensor back up.And checkall connections that may have been unhooked.If the fuelgauge doesn`t work,or you were on empty,and moved the vehicle,on a slant,this may be the reason,no fuel.Find out if the vehicle is firing,or no fuel,or both.Look over everything,it is most likely something left unplugged,or unplugged by accident.I hope this helps,if so please let us know.