Engine light stays on, battery guage on the charge side, vehicle has stalled twice, check gauges light has come on once

The first thing you need to do is scann the codes for the check engine light, the computer is always watching all systems when it sees a problem it stores a code with the problem and turn on the check engine light, for example in could have a code that reads po301 cylinder 1 misfire, you would then know cylinder 1 is misfiring and then with somw testing see why its misfiring. there are many auto part stores that will scan the codes for free and give you a print out with the codes, if you get the codes i can help you better. the charging gauge you will need to have the alternator checked to make sure its not over charging, if it is then that would turn the light on, good luck.