what will make this car run right?

I have a 1998 zx2 i just bought for really cheap the girl i bought it from said that the car started stalling out when she was stopped and then one day it did it and it did not start again.she had the timing belt,water pump, cam sen. plug wires and i replaced the crank shaft sen. the car will start but runs rough..if any ideas what might be wrong please let me know...thanks

maybe need to chage the fuel filter or pump, ensure the timing isnt off

Zx2's DO have a rough idle.