Do you have a scanner? If not buy a cheap one that can pick up some data. Access your target and actual charging voltage in your pcm data. They should be really close to each other. At the same time check your charging voltage with a multimeter at the battery.
If the pcm or battery wiring has any resistance then the pcm will be trying to up the charging voltage to compensate.
If you are having a low idle dip because of a idle motor or otherwise than charging voltage can dip also. You may be trying to chase two things at once.
2014 JKU, JKS lift,Poison spyder flares, bombshell covers,Rancho D2 control arms, JKS adjustable track bars, 35" Tires. GrabBars, Crawler Conceptz rear bumper, Smitty front bumper, Winch. Rough Country inner fenders, Teraflex Disco Mud Flaps
Backseat Dobermann Security