Why dose my car crank normal but no start

Why dose my car crank normal but no start

I have a 94 toyota camry le it was driving just fine and it just died on me when i was driving thought i ran out of gas but now it has gas and still no start. I was told there was no spark at the sparkplugs. After new sparkplugs, sparkplug wires, distributor and cap, and a few other things it still wont start. I dont have the money to take to a shop and no one to help at least no one that know what they are doing.