96 Subaru Outback Dies then runs help??

actually its a 2.5L. don't know what I was thinking. I have taken it to two mechanics no one can figure it out. was told I needed a new alternator. put a new one on, still does it. tired of buying new parts and putting them on and still not working right. exhausting and expensive!! I hate Subarus...

I wanted an answer that why I put this stupid app on my phone.im having same problem

I doubt the alternator has anything to do with your problem unless the battery and alternator are stone cold dead. Randomly replacing parts is expensive and usually does not solve anything. Intermittent problems are a b*tch to find and repair. I would check out the coil and the electrical connections to it. Try and narrow it down to an ignition thing or a fuel delivery problem.