No one has any answers? How do I just talk to customer service then????

Every time I tune my truck the check engine light comes on and stays on almost all the time. The latest code it throws is P0236 - Turbo Charger Boost sensor Rnage/Performance . It is not the sensor either, because if I "untune" my truck, all the warning lights go away and don't come back. What ...

I have a 02 LB7 with only 50K miles, and mine goes into limp mode fairly freqently with the tuner. Every time I pull a trailer and it kicks down on a hill the tanny goes into limp mode and I have to reset the computer. It seems that my Allison CAN'T handle the power. Even the 60 hp settings! It aslo ...