LBZ duramax here with Efi live/autocal/dsp5, Bought some tunes from a guy and he sent dsp5 switch with the efi live. Go to delete the EGR and put the tunes on the truck and the truck starts acting up, the turbo starts to go in and out and the vane position is all over the place. About a month later I pull the turbo clean/rebuild it/put some new wheels new sensor & selinoid, so everything on this turbo is in check.reflash my tunes, mess with the switch a little and it starts up great and turbo is staying consistent. Load up the data on the efi and it shows me turbo vane position % & dsp5 voltage. (i