Can the converter work on the diesel or does it need the computer to run it. A mate has put it on his cruiser and is not getting enough gas out of the business end. Any help would be muchly appreciated...

turbo diesel?

and can you give the details of all components and the wiring.

These are only a positive feed converter. Defiantly nothing to write home about. They cost s**t loads but are not worth two bob. They do require a gas computer to work correctly with regards to emissions. Regards TPVM.