Starts runs for a few secs. then stalls '98 Pontiac Grand Prix SE 3.8L?

Service engine soon light came on went to Auto Zone had them hook up the machine to check for codes found 4 codes. Don't have the #'s to them anymore but I replaced the Duralast/MAP Sensor which was broken, Bosch/Oxygen Sensor was the other code. It also said a fuel injector and Mass Air Flow Sensor, but as we all know money is not on my tree in the backyard and I was hoping the by fixing the first two and resetting the the car by disconnecting the negative terminal on the battery would do the trick. All it did was make the problem worse now, we where able to drive it pretty much where ever it would stall once in awhile. After I disconnected the battery and waited a few minutes reconnected it started the car drove about 1/3 mile it just stalled. Restarted it had to keep the RPM's up and shift from neautral to drive but could only make about 150ft and it would die again.
would the injectors and Mass Air Flow Sensor have anything to do with that?