It seems to me that fuel control on lifts is already becoming standardized. GFI or Impco have control of the forklift business. Also the one used to power the Nissan engine that I am no familiar with are found in many applications. The controls are the same and the possibility of the same system being used to diagnose the running system is possible. I am also unfamiliar with what Crown uses at the moment to control the John Dere engine in their lift, but will assume they have went they way of other manufacturers and outsourced their fuel management to other companies.