trinituner.com

Or who know where to find?

you don't need a wiring diagram. open the screws on the of the ecu and look at the pins leaving the ecu, the are all labled. if you do a search you can find what they mean. just to pull one out the hat as a eg http://www.club4ag.com/faq_and_tech_pag ... 090-91.htm

Thanks,
I ended up buying one so if anyone needs a copy, just let me know.