So i got a bx gti motronic setup from a member off here, the problem i have after missing uni and spending every hour since it arrived this morning trying to find loom diagrams or someone else that has used this loom im at my wits end.   The plugs all look the same bar some that are a different colour, like 2. The loom is long enough to sit in the 205's original position but im having issues wondering how i go about splicing this into the brown multiplugs and what to do with the plugs i havent managed to identify!   All the loom wires are 1 of 4 colours and theyre not numbered, some of them have a coloured lick of paint on the end but thats it.   My first ask is going to be if anyone has a pinout diagram for the motronic 3.1 ecu and also if anyone has used this loom that can point me in the right direction. I dont fancy changing to the 405 loom cause i think that will be just as difficult as trying to find another complete 3.1 setup.   So help please   edit: I have found a pinout diagram, but obviously the loom is under tape, so whilst im tearing it to pieces over the next few days, any help or comments on the link will be apprecated, as there are wires going to pins that say "not connected" that i have wires going to.....Motronic pinout pdf