2007 Aspen 5.7 Hemi . Rough idle stalls out strong gas smell
 

My 07 Aspen is running like crap starts hard idles really rough and stalls when put in gear . I have a low voltage code but can't find it . Got a new battery and had the alternator tested and it was good. So now I'm at a loss. Any help I can get with this would be greatly appreciated. Thanks John