Attention: TDR Forum Junkies 
So, I picked up my new to me 2010 2500 4x4 auto w/135,000mi. I had a 145mi. drive home. At about 55mi. into the trip the engine light came on. The guy I bought the truck from said that he had a engine light come on,something about the EGR sensors. Dealer replaced one of two, don't know which one. So I stopped at the local dealer here where I live in Anchorage and the service provider pulled up two codes, I tried to see what they were. One said something with EGR and the other I can't remember. Got home and put the Smarty JR on it to read codes and pulled a P2509-power down data lost. and p0471. I'm guessing the 0471 has something to do with EGR. I searched on here for these codes and the only info I could find was that the p2509 might happen when you don't wait 10min before pulling battery cables off. Of course, the service advisor can't fix anything. So, got to wait two weeks to get in with the diesel mech. Any ideas of how to fix these codes? Anything to worry about till the mech can see the truck? Would like to sell my "old" truck but don't want to till I am sure this "new" truck will be fine.
Thanks.
Thanks.
