Great forum. Lots of useful information. I'm looking at my first diesel truck a 2007 3500 Classic crew cab. The truck has been modified by an outfit called Western Haulers out of Ft. Worth. They retro fitted the stock air box with a True Flow XDi filter. The truck has a check engine light with code P0101. I guess this might be attributed to the air filter? There is also an Edge Evolution installed. The truck is in really good condition. Any major things I should look for that might be show stoppers? Thanks in advance.
