What could cause 2003 dodge neon to start up but not stay running?

A 2003 Dodge Neon that starts but doesn't stay running could be experiencing several issues. Common causes include a faulty fuel pump, clogged fuel filter, or a malfunctioning ignition system, such as bad spark plugs or ignition coils. Additionally, problems with the mass air flow sensor or issues in the engine control unit could disrupt the air-fuel mixture, preventing the engine from maintaining idle. Lastly, a vacuum leak could also lead to unstable engine performance.