red/black (thick)=fuel pump
red/blue (thick)=batt +
black(thick)=ign switch
green(thin)= rev counter
brown/white(thin)=water temp
brown/green(thin)=oil switch
brown/red=ecu diag light

this is what i was told how the yb loom works??

im still to look at the mk2 loom so this is gobbldy gook to me but it cant be hard to sort?? fuel pump live, bat live, ignition feed,??? then the others are for gauges i think so by looking at it, the ign wire contacted to the live feed at the barrel, batt+ onto constant live feed, and pump wire ran to back of car for live pump? feed? ? then i take it i earth the pump of the shell??

again this is all in my head at the mo still to put into practice lol
if im wrong can someone let me know