Fuel pump

What is the history that led up to this? Why did you replace the fuel pump?

There are dozens of things that can cause the engine to stall, but the fuel pump is way down at the bottom of that list. It is common for GM fuel pumps to stop running while you are driving, but when Chrysler pumps fail, they almost always fail to start up. Once they have started up, it is almost unheard of for one to stop while the engine is running.

The first thing you need to do is listen for the hum of the fuel pump for one second when you turn on the ignition switch. If you hear that, the fuel pump is working. Next, check if you have spark. If you do not, most commonly you will also not have injector pulses. Failure of both systems is caused by a loss of signal from the camshaft position sensor in the distributor or the crankshaft position sensor. There may be a diagnostic fault code related to the missing signal. Cycle the ignition switch from "off" to "run" three times within five seconds without cranking the engine, leave it in "run", then watch the code numbers appear in the odometer display. You can go here to see the definitions:

https://www.2carpros.com/trouble_codes/obd2

If you do have spark, we will have to look at the fuel pump and its wiring. If spark is missing but there is no fault code set to direct you to the circuit that needs to be diagnosed, you will need a scanner to view live data. Each sensor will be listed with a "no" or "present" during cranking to show if the engine computer is seeing their signals.