I have a t 190 that keeps blowing the computer fuse, it will even do it when the machine is off. I have disconected the computers and all the sensors and still it has a dead short. I have inspected all the wiring I can and cant find any issues. you can put a fuse in and it will run for two seconds and pop the fuse, this makes me think its not the computer but a direct short at a rubbed thru wire but I am at a loss to find it.