Bad gas, water in fuel, Low fuel pump pressure, dirty air flow sensor screen, one or more engine sensors defective and/or out of normal reporting ranges, engine control computer defective. Low battery and alternator output. The "check engine light" should have come on to give you a hint.
When driving the IAC does not do anything because the car is not at an idle
a loose transmission or shifter rod might move the gears around a bit and make it stall
It could.
running out of gas? is it carburated?
yes a bad converter will make car stall
if you have a cracked distributor cap then water would get inside it and make your car stall.
Peeing off the side
Remove the muffler
Front Wheel alignment
It might have run out of gas.
A bad crank sensor will definitely cause the car to stall. Eventually the car will stop starting up again, or if it does, it will die down around ten minutes. A good thing to do if you're sure it's the crank sensor, replace it.
There are many things that can cause a car to stall while driving it. If the plug wires, plugs or coils are bad and are causing the engine to misfire, the engine will run rough. This may also cause the car to stall when driving. Generally, it will start back up, but it may be difficult to keep the car running. If your car stalls while you are driving it, look for an obvious reason first. Check to make sure you have fuel in the tank. Do not sit there and crank the car over, trying to get it to start, as you will quickly wear down the battery if it's not already bad.