The charging system is reporting a problem. This could be a bad battery, poor/dirty connections at the terminals of the battery, a faulty alternator or a short in the wiring between these. Since the vehicle is post 1996, you can bring it to many auto parts stores and they will scan it for free(Advance Auto, AutoZone), to see if there are any codes stored.
Check output of alternator--with engine running vots should be 13.8-14.2 Check with a voltmeter
no a 2001 dodge neon motor will not work in a 2000 neon
From the alternator to the battery should be 14v
The battery is under the hood on the driver side in a Dodge Neon.
Nearly all of the parts on a 2001 Dodge neon are interchangeable with the 2002 Dodge neon. The models are almost identical.
it is located behind the battery mounted on the firewall drivers side
valves are not adjustable on a dodge neon.
Yes there is no difference in the two years 2001 was a carry over from 2001.
You will need to get the cause of the check engine light repaired.
A Dodge Neon is port injected.
no
correct problem then dis connect and reconnect battery.