My 2005 dodge neon stx stalls after the neg battery cable is removed.

Could be a bad battery but I suspect your battery cable is either loose or corroded or dirty. Before you pull the battery disconnect your battery cables and clean them both ends and when you put them back on make sure you have good connections and tighten good.If that does not work pull your battery and get it tested at a battery out let . they should do that for free.

pull your neg . cable off battery then turn your key to on position ...leave on for 15 to 30 seconds .then turn to off position ..reconnect neg cable

all the neon I have seen have way to small battery cables and ground wires. We had this issue with our neon. Replace both ground to engine block and battery to starter cables , and terminal ends with heavy duty ones . and add a heavy duty ground cable from battery to body. this will permit the charging / starting systems to work with greater efficiency.

sounds to me like it has jumped timing

First see what code is in the computer.Cycle the key three times and stop when it in the run position. The check engine light will start blinking. The first code should blink once then pause, then two blinks.This is showing that it is in the diagnostic mode. read all codes the same way, untill it starts with 12 again. Write them down. Then remove the negative cable from your battery post,after one minute, replace neg. cable. The light should be off.If it comes on again, it has set a hard code. You must repair whatever the codes indicate. Get a list of trouble codes online at Google.

oxygen sensor bank 1 failure, replacement warranted. Please do this replacement, if you fail to repalce, this will ruin your catylitic converter. Obtain a o2 sensor removal tool and socket wrench, the o2 sensor will be in front where the radiator is, remove this and install a new one, do not ever drop this, it is indeed fragile, after disconnecting the neg battery terminal then you can proceed with this mission.
Thnx 4 using fixya.com

Make sure starter end of battery cable is not touching anything else but the mounting post on the starter. Make sure Pos is to pos and neg is to neg

Hi- I have one of these -
First off get a new key made and that will help.

when getting ready to exit the vehicle push the gear selector all the way forward - a little extra effort and then remove the key - to fix have the cable adjusted

as for the shutting off - replace the air filter -and spark plugs if you have not done so in the paste year.

Best of it

Rice

soumds like the computer went crazy, ive run into this with dodge/crysler. what you do is remove the battery cable (neg side) for 5 mins, then reconnect and drive car for 50 miles with a complete cool down, meaning drive 25 miles park overnite then drive another 25 miles then have the retest done it should pass, hope this helps.

To find the starter just follow the cable from the positive post of your battery. If you plan to replace it, REMOVE THE NEGATIVE CABLE FROM THE BATTERY!! This is a very hard starter to work on! Both replacing and fixing! OK Frankster016