Voltage meter going haywire

Sounds like the alternator is the issue, verify this by having an auto parts store test it. Most likely it can be checked while on the vehicle.

This might also help you out prior to buying a new or reman alternator. See my link.

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

Let us know how it goes!

The Medic

I reckon this being a 1995 it has a computer, a sensitive piece of equipment

Removing the battery cable while it runs is the very worst thing you could have done!

Way back, you could do that. When you tried that on a 1960's- through 1970's and early 1980's vehicle you "might" muff up the voltage regulator, but what the heck, a whole alternator for an average vehicle might cost $35.00 back then. A whole bunch cheaper than a computer!

Maybe you have not done damage or compounded your issue.

Up there at the top of our pages is "repair guides"

I went ahead and grabbed the one you need.

https://www.2carpros.com/articles/how-to-check-a-car-alternator

The alternator may still keep it running (doing it the wrong way) but it may be over charging and giving Mr. Computer too much voltage. Over charging may also damage the battery or even make it explode!

Keep us posted

The Medic

Nice work, we are here to help, please use 2CarPros anytime.

Best, Ken