Car was runnin fine until i turned it off for a half hour,started it and it started sputtering like it wasnt gettin gas then just stopped. engine turns over and thats it. i replaced the fuel relay and auto shutdown relay and coil and the iac sensor. i checked the fuel regulator and it was fine.

Change the fuel pump and filter. due to its age its time to replace them.

The fuel filter may need to be replaced. The parts are relatively cheap - labor may vary from 1/2 hour to an hour.

check fuel lines and filters , filter could be in tank .

i think your gas was prety low thats why it did that

maybe alternator is stuffed, try gettin it runnin and immediately disconnect battery while ya engine is runnin then if ya engine cuts out that may be your problem.

If the problem occur after you stop the car and switch-off the engine, it could be the master/main relay. After a few hours, you can restart the engine as usual. Try to replace the relay, it may work well. Happened to me and my friends before.

Check the fuel filter to see if it is plugged.
Remove the fuel filter, and blow air through it in the normal direction of fuel flow. You should be able to blow through it very easily. If it feels restricted, try blowing through it the opposite way, and if there is a lot of dirt coming out, you have found a common cause of this problem. Hope this helps.

I am having the same exact issue right now with my 01 Alero. Been having electrical issues with lights coming on and off. ABS was kicking on a few times even. It started sputtering like it was running out of gas, thought that might have been the case. But after I put gas in it it still didn't start. Now it turns over but nothing. What ended up being wrong with yours?

if u put a bulb across the contacts thhe bulb will light when cranked to show there is power there thr it on each 1 , if no light then there is no power or signal to the injectors

ya the fuel pump wont pump with the lines off but the pump is going bad they will work and wont work