Mitsubishi Repair: 2005 magna stalling, mass air sensor, best bet

Question
I have an 05 magna (auto) and it had been stalling on start up but after a second turn over would be fine. The battery just went flat and was replaced but now when in gear and the accelerator is pressed it stalls.

Answer
Jessica,
You may have a bad alternator, clogged fuel filter, weak fuel pump, dirty air filter, malfunctioning mass air sensor, or even a problem with your ignition timing.  As you can see, stalling issues can be cause by a number of components if they are not working properly.  Your best bet is to have a mechanic check those components and systems I've mentioned for a complete diagnosis.
Good luck!