got the pin outs for -
ax gti engine loom plug(dash side)
single plug vts loom plug (engine side)
single plug vts ecu plug
And a "what wires go where" list to match up the ax plug to vts engine loom
All saved in a word doc with diagrams
I can email it to you if you think it may help.
There is also this - http://www.autoelectric.ru/auto/citroen ... fx/nfx.htm
which gives a detailed view of the single plug ecu and wiring.