"The diagram I have shows terminal #7 on the enrichment control unit, for a 1986 model (mine's 1987), vs #12 on your diagram. Different years?"
Yes, you are correct. There are two different Fuel enrichment control units, 930 617 131 01 and 930 617 131 02. They both do the same thing, but have different pinouts. The newer one has more pins, but they are not used for the 930.
