The problem coud be in your alternator, that do not charge battery.
<melisbrook.TakeThisOut@hotmail.com> wrote in message
news:1148752728.500427.17500@y43g2000cwc.googlegroups.com...
>I have a 99 jetta 2.0 AEG. Car was doing great. Went on vacation,
> returned to find dead battery. Thought must have left a light on, etc.
> Charged the battery and tried to start. Car will start initially, but
> in seconds runs very rough, misfires, and then dies. Got code 1543:
> Throttle Actuation Potentiometer signal too low. Anyone have a similar
> problem or know how to test the potentiometer? Thanks.
>
> Mike
> >> Stay informed about: 99 jetta 2.0 won't stay running