I got my hands on the original EEC unit that was used in I guess prototype. My question is is ther anybody that would know the difference in the programming between the two? Our units end in a number one and the one I got has a number 0. So my guess is that its the one that was set for production and a revision was sent in. The person that delivered it to me said the only difference he could find is something in the toe in?, in the throttle response part of the programming. I'm probably going to give it a try after I try my modified MAF unit.