Dave,
Thanks for the info, I'll be giving it a try once I get home.

Richard,
Dave is correct that a splicer will provide the same results electrically as joining the wires using a piece of wire. However, having spent many years working on British cars (with dissimilar metals being a big problem in their notoriously unreliable electrical systems) I would caution against using a splicer. I can't tell you how many of these things I've pulled off where the wires where the splicer entered the insulation were corroded beyond conductivity. This does seem to be accelerated if exposed to the elements. My '76 pickup was full of them and I've been cutting them out of circuits for years. If longevity is important (sometimes it isn't) I would recommend soldering the connection, this is the fuel injection system we're messing with right, it would probably be worth the extra time to make a clean connection. If one must use a splicer, I would recommend a liberal dose of di-electric grease on the connection to slow down any corrosion. Just my 2 cents.
Good luck!
Bob