1997 Sebring 2.5L Hard Top Engien Problem
 

I had owned the car for a year i left it parked for a month the battery died and after i jump started it the carstarted acting funny. The car starts has a spark but makes poping noises out of the engine and wont drive past 20mph. How can i fix it? how much? Im located in NY maybe any techs with a dealer computer can reset it? I used the snapon scanner with no luck