I have a 2009 Mercury Milan premier 4 cylinder 6345, miles. I have changed the fuel pump, fuel filter, alternator battery and checked fuses but car still will not start. First it would start than stall out while driving down the road

My car got broken into the stolen my stereo in the app as well as my battery and everything from the throttle body down. I have replaced my battery, air intake system, mass airflow sensor, starter, spark plugs, manifold gaskets and the fuel pump. I had to reset the fuel pump shut off switch, and thr car finally turned over but then died. Almost as if it was starving for fuel however I have 60 to 70 psi at the fuel rail. But it almost sounds like a vacuum leak, which I've been unsuccessful in finding one. Also when cranking the car and pushing on the gas pedal it's like the pedal is not even working, it had zero affect on it at all. But when the car is off and I push on the pedal u can hear it in the throttle body. Help I'm at a loss...