I have a 2008, 2500 ccsb, engine all stock except for PCV re-route and stock air box cleaned out. Lately I have been getting an intermitent CEL, I was under the assumption that when you had a CEL it stored a code. It has been to two different stealers, 2 times each and they told me there is no stored code. The only thing I noticed was it seemed to happen right before a regen cycle. Now my regen cycles happen about every 100-160 miles:think:. At one point I did my average economy function on my dash and it read 8.1mpg, this is empty driving normal 65-70 on the e way. I have no idea where to go with this problem......like I said, the only common denominator is it happens around regen. Does anyone have any sugestions?

I know.....DPF delete, If I was working for the past year that would already be done! Just don't have the coin:banghead: