2006 VW Touareg V10 TDI Gets New Batteries & We Remove The Tune

In our attempt to diagnose our 2006 Volkswagen Touareg V10 TDI, we install new batteries and remove the tune that was on it. Once we removed the tune the diesel engine ran like crap and often died. We now have a check engine light and different trouble codes indicating communications along with a battery drain. Most likely we have some electrical issues with this car. Music: "www.bensound.com"