I had Jesse write a tune for a 2005 5.3L 1500 Silverado running the 12606807 operating system. When I downloaded it the truck would not go over 1200rpm or so and about 20mph. It felt like it was limiting torque to zero or something awful close. If I change the B6614, Mas Torque by RPM, table back to stock and leave everything else the way Jesse set it up everything is fine. Except normal torque management is active. Jesse had it set to 640 across the board, I also tried 450 across the board and it still limited rpms to about 1200 . So far no one can explain this. Anyone else had the same problem or of know of a cure? I don't want to post the complete tune file unless Jesse OKs it since it is his intellectual property.

Regards,
Jaime