Here's the answer guy's it was a loose connection at the fuse box Junction block . We have to rethink when it comes to the new cars,new systems. This car has more than a cable battery to starter. It is split like a harness that ends at the battery positive ,there 1 connector going to fuse box Junction, 1to altenator, which includes a separate wiring plug altenator connector,plus 1 going to starter. So in fact it is a harness and cables. That is why they have a battery voltage sensor on the battery negative cables,also more than 1. This battery voltage sensor signals the computer when to turn on the altenators voltage regulator to charge the battery . Sooooooo clear a mud now. When you see the voltage drop you have check all this not just battery connections as we did growing up. We'll some of us lol.