This could be a number of things and needs to be checked out with machines,
Check fuel and spark
vacuum leak,map sensor
If a 1999 Ford Range starts rough and wants to stall if not given extra gas, the fuel filter might need changed. If it becomes clogged, gas can not get through.
bad fuel will cause engine run rough stall out a lot vechicle wont start
Your speed is zero when you start to run, then it gets higher.
O2 sensor, if you have replaced it already, pull it out and make sure it hasn't burned it again. Jeeps can be notorious with these O2 sensors.
Try cleaning the EGR valve.
The idle speed control valve was bad.
Check tha idle speed control solonoid.
This is a electronic fuel enjected engine and therefore the electonics set the engine idle speed a bit higher during a cold start so the engine will not stall out.
Maybe a throttle positioning sensor? Is it hard to start? Does it start then stall?
If the oil is low in your car, it can eventually cause your car to stall and not start. It can also kill your engine.