The car starts but I need to keep my foot on the.

WHEN WAS YOUR LAST---FULL TUNE-UP?

I'D CATCH THAT UP 1STI MEAN EVERYTHING!---NOT JUST SOME SPARK PLUGS AND WIRES

THEN IF IT PERSISTS

LOOK FOR A VACUUM LEAK

TUNE, REBUILD, OR REPLACE CARB

I'M ASSUMING THE INTERNAL MECHANICALS OF YOUR ENGINE ARE IN GOOD SHAPE---WITH THE ABOVE ADVICE

YOU MAY ALSO FIND SOME USEFUL INFO IN THIS LINK

https://www.2carpros.com/questions/2001-dodge-neon-milage-just-want-put-fliuds-their-locations

RETURN TO THIS POST AND LET US KNOW HOW IT'S GOING

THE MEDIC