Throttle cable adjustment clip, took all the slack out of the cable?
Yep, blink codes, paper clip and an 1.2v instrument lamp do it for me.
Get the idea from this page maybe - these are three connector diagrams but I worked out how to jump the two pin setup from it somehow, can't really remember but i've got a diagram somewhere I drew, will find it tomorrow.
http://www.sjmautotechnik.com/troubl...MC2.html#fctwo