I tried to max out c6101 and it didn't stop the reduced power problem. When i retreve the tdc codes but there aren't any that explain why the reduced power mode is being triggered. All the transmission process enablers are turned off from the factory in the ecm and in the allison program there aren't any process enablers to turn off. I get the feeling the problem lies in the tcm telling the ecm to reduce power. I turned 1514 code off and 1781 off but still the reduced power comes up on the display next to the tach on the dash. There aren't any custom operating systems for the allison control modual yet are their? 604 cu twin turbo gas with allison 5 speed originaly 8.1l with allison 2001 4x4, with custom operating system 2 bar map senser and only at 3.5 psi of boost and triggered at above 5000 rpm. The transmission was just rebuilt with all the good guy parts, custom tqu converter, co-pilot and shifts great. I'm running out of options. Only other option I can think of is to stop letting the ecu and tcu communicate. This problem arose when i increased the wot shift points from 4650 rpm to 5200 rpm in the tcm.
any help would be great
thanks