mrcoolkid, had you considered purchasing and reading the service manual, (or asked here, among other places) you would have found out that there is a procedure to clear the codes on Catibishi and Mitsupillar machines that does not require the computer, and can clear all the codes except the ones related to the pedals, (since it requires timed action of the accel pedal).
I am impressed that you were able to "rebuild the vaporizer" as it is considered/required to be "tamper proof" and has special security screws. I would also note that a lot of the items related to the emissions systems (in the USA anyway) have considerably longer hour warranty than most of the rest of the truck, but if -you- mess with it, -you- void the warranty anyway.
I know this problem is not just with Catibishi and Mitsupillar machines, as I think the NACCO brands dealers have about the same difficulties in sharing their software and permitting end users to purchase the cabling. I do know of some end users that have negotiated training and permission to purchase cables to hook up with when they purchased the trucks.
I think it might be very valuable to know what brands don't have such a close lock on the ability to access and setup the emissions control computers, and maybe the independent techs should work towards pushing customers toward purchasing those brands. I think that would more likely do something to motivate manufacturers than almost anything else we could do here, should the manufacturers notice the resale value of their product is less than some other brand.