yes, if the fuel injectors are shut off the engine should start with external fuel added to the intake. A shot of starting fluid may not be quite enough to get the engine running ( I don't know how much you used) but you should use carb cleaner rather than starting fluid.
But, if the security light
stays on, that means the security system doesn't see the key it's looking for and will shut the fuel down. I am not there to see what is happening. I can only go by the information you write.
On a no start there are some basic things to check for.
fuel pressure. you have to measure the fuel pressure with some sort of gauge. fuel pressure should be 41 t0 47 psi. you can't tell if it's 15 psi or 50 psi unless you use some sort of gauge.
check for spark while cranking
check for injector pulse while cranking. you can check the injector by unplugging one and use an incandescent test light so that it is hooked up to test the two wires that go the the injector wire harness plug. It should flash as you crank the engine. (once per engine cycle)
WOT on start up shuts off the fuel injectors. If it seems like the engine wants to start with the throttle open all the way then maybe the engine is flooded. Pull a spark plug
out and see if it's wet with gas. If the engine is flooded check the fuel pressure regulator. Sometimes the regulator diaphragm will leak and pump fuel up the vacuum line into the intake.