where is the fuel filter on my car? The engine dies when idling at a stop light. on 2001 Plymouth Neon

How can I determine if the filter is failing or the fuel pump is going out? Where is the fuel pump and filter? How do I get to it? Could the problem be the fuel injectors? This is problem is not constant but is becoming more frequent. The engine light is on.

Asked by for the 2001 Plymouth Neon