My brother has a 07.5 6.7L Cummins. We took our trucks from NJ to Reno and back....in a hurry I might add. We were showing a Yukon driver that his SUV is not as fast as a Superchipped Cummins or Duramax on EFI Live when we discovered the Cummins is only good to 105 mph. (This was in the desert of Utah past Salt Lake City). Shortly after he got a "Cat 90% full" message and the truck lost some power. He said he could keep up but he couldn't accel. like he could before. The message cleared and he was good to go the rest of the trip. Is their any relationship between the cat full message and the increased speeds we were running? You'd think high sustained speeds would clean it out.
Thanks guys,
Ed
Thanks guys,
Ed