[Power Hungry]

Troy,

The files you're using have been on the server for some time with about a dozen people running it without issue, so I'd say we're pretty good with eliminating that as a problem. This leaves either a physical chip problem (most likely PCM connection), or something else wrong with the vehicle.

The chip connection is easy enough to verify. Just pull the chip (keep keys in your POCKET!), brush the contacts with little Scotch Brite, and reinsert. In many cases, that clears up any drivability problems.

Outside of that, there could be a variety of mechanical/electrical issues that could be causing you some trouble. Some popular ones are:

CPS
UVC Harness (This one is good for poor drivability along with high EGTs)
Injector O-Rings, copper washers, or cups leaking (Also high EGTs... happened to me recently!)
IPR (May cause drivability issues , but generally not higher EGTs)

One simple trick to isolate injector related issues is to remove the UVC connector on each side (1 at a time, of course) and see if there's a noticeable change in engine drivability. Usually this is related to very extreme cases where the engine is missing badly and has no power. If the engine is running smoothly at idle, then this is probably not the case and is usually something much less serious, although it might be a bit more difficult to track down.

If you can get us any more feedback on how the truck idles, runs at low speed, if it's missing and how severe, or any scan tool information at all, that would be helpful.

Give me a shout if you have questions and we'll see if we can get your truck figured out.

Take care.