Richard...It works just as you said. Again thanks for the help. Incidently, that 6.6 LBZ with 6 speed/Allison has awesome power.

We have the 3500 2wd CC duramax dually and tow a combined weight of 22920 lbs. We had the TD-EOC installed oct 07. We just drove 1484 miles up to 7500 ft and head winds for 2 days of the trip. no fan at anytime so the mileage suffered because of driving faster than normal just to test the TD-EOC. Very happy with the truck. chevman

I have an 04.5 D/A CCLB 3500 and I tow a 37' Alfa with it. I also have EFI Live 5dps with one of the setting using the VVT as an exhaust brake and it works fine without a heating issue. Here is a link to a forum that is anything you want to know about diesels. The diesel place