Cranks but won't start

Tim:
If you have spark, then you must be missing fuel. See if the car will start with starting fluid. If it does, you're not getting gas. At that point, you need to check fuel pump pressure. If you do, many parts stores will lend or rent the gauge and here is a "How To" video that will help you do it:

https://www.2carpros.com/dia/test_fuel_pressure.htm

Let me know what you find.

Joe

The theft- warning system use a series of simple switches as senosrs
But I do not know if the alarm is triggered when disconnecting the the old battery for the new one.
When disconneting batter, allways plug a memory saver into cigarette lighter socket to keep computer memory alive, for alarm, for your radio setting and the clock, it cost 10 buks at auto part.
Now let talk about the no starting issue.
As I said b4 the theft- warning system use a series of simple switches as senosrs.
Check door switches at the door jam of each door.
Door key cylinder switches, check if someone did not force the door, try to open it.
Check the hood switch
trunck switch
door lock actuator switch
ignition key switch, check ignition cylinder for losenss.
Or have forced the key in the cylinder many time trying to start the car.

I do not what security system you have on your vehicle.
I'm glad you figure it out.
Thanks

Check your fuel pressure and connections.

https://www.2carpros.com/car_repair_video/test_fuel_injection_pressure.htm

check this out for fuel pressure

You might want to check for ignition/spark also

https://www.2carpros.com/car_repair_video/test_engine_ignition_system.htm

What is the fuel pressure reading?

If you have a scanner look at the CTS annd AIT temps before starting it and see if they match each other.

Does that match the temp outside at the time?

You have good fuel pressure and good spark. That only leaves injector pulse. You'll need to get a noid light and check the injector pulse when cold to see if you are losing it for some reason. This could be dirty fuel injectors but I kinda doubt it.