Long story short my buddy has a 2011 LML that left his stuck after fueling up. This is the second time this has happened. When he started the truck the rpms jump to about 900 and wont allow you to shift in drive or reverse. The “shift inhabited” warning pops and and says go back to neutral. No codes pop up thought. It’s fully deleted and tuned by mini max. After disconnecting the batteries for a few we were able to get her on the road again. Anybody know what could be going on? What ever it is I believe the truck won’t shift out of park or neutral because of the rpms jumping on start up.
