I have a 2012 6.0 2500hdwt with a E78 I thought cruise ecm) this thing is a dog towing. Is there anything I can do to give it more power ? It has a P0138 code swapped sensors didn't go away. I have all the right voltages at the plug. Dealer says probably ecm ? I'm thinking of disabling all sensor2 DTC and MIL dealer actually said good idea which shocked me.
When it has an empty trailer on it can't out pull a cruise. Any help would be appreciated. I was searching for tunes that people tried but didn't see any and I searched here for torque or more power and didn't see anything for this truck.