by loot » Sat Sep 22, 2018 6:45 pm
Can't answer your question specifically but I have some experience with upgrading the mk2 fiesta speedo to the xr2 speedo which consisted of power plus and minus and low coil pulse to pin 3 of the rev counter, the remaining lights were basically metered and wired accordingly into the connector, analogue with basic power wires for each warning light which were bulbs iirc. I vaguely recall keeping the speedo though as I think the correction was different.
Used to work on friction in those days so you could adjust it a bit.
56 350 2.2 130ps mk7 with 2 side doors
65 290 2.2 125ps custom with 2 side doors
07 350 170ps
Ids v86 licence + v86.04 update + xprog
hereIds map
here