2003 dodge neon that will start but will not stay running and dies after it starts?
weak fuel pump.
Dirty carburetor.
check for a vehicle theft system?? Is the Light Illuminated. does it stay on:::
If it starts but doesn't stay running after you release the key from the start position, it means your ignition switch is bad. Not a huge expense.
probably failed throttle bypass solenoid or possibly throttle position sensor
Make Model and Year please.
My car starts and runs fine .Yours may need a fuel filter or pump.
sounds like a fuel problem change the fuel filter first
Check for a vacuum leak or disconnected vacuum line
check you ecu under the kick plat on the pasanger side then you might have to change you ptu
if it starts i might need the carburetor tuned or cleaned or check the spark plug gap