How many miles are on her? Id guess its either miss firing, or not getting fuel. See if you can pull the plugs, should be easy on that little I4. If they are all gummed up and discolored, should be time for a swap. Plugs are probably about 2.50 a piece at any auto store. Also check the wires going from the plugs to the distributer. If those are frayed or cracked, replace those as well. Could be a fuel pump, you should have a fuel pressue check valve somewhere on the fuel rail, looks just like a bike tire fill valve. Unscrew the cap, and press the indent on it. If fuel spays a bit, your pump should be good.
Is the car throwing any CELs? Does it start up right away? Is it a rough idle from startup on?