Hey guys, I put an after market air filter on a new 2011 4500 cabin chassis which I removed from a 2007 3500 c.c. 6.7L. The next day it popped the code U11C1. The dealer said to put stock air filter back on because the truck can't count the air with an after market filter.
1. Does anyone know what that code means?
2. Is the dealer correct?
3. Is there any after market filter I can use?
4. I'm told June is when the smarty box and others come out for this truck. Heard anything different?
Thank you so much..

 

I think if you go to the h&s installation download page I believe it list all the codes and there meaning. I know H&S has told me they hope to have something for the cc w/aisin by the end of this month