Actually, getting your RV to work is half the fun, right? I found this thread which matches your situation perfectly:
Need help with 2003 Journey 32t Cummins engine
So, "nofunRV" is your moniker? I remember back in college, I wrote to my dad when lack of funds was crimping my style and said this:
my dad wrote back with this note:
Remember, things could always be worse!
Welcome to the forum.
P.S. If all else fails, you can always disconnect the computer (ha-ha)