could someone please help with the following for my ef project;please note all fact wiring removed and makin my own loom,i just need to know what the following wires do
1: 4 wires from alternator.fat white direct to batt?2 yellow ones?? 1 skinny one??
2: 3 wires from o2 sensor,1 earth???,1 positve???,other ecu??but which does what???

thanks in advance,scotty

Without looking at a wiring diagram I would say the big white 1 went to battery positiveand the other 3 smaller would be alternator warning light,battery sensing and possibly ignition feed.I can't remember the o2 sensor but google is your friend. Cheers Kevman

i stipped back the wirin to the alt and found , all the big fat ones are joined together anyway,so ill just conect this to the batt,orrrr does ther have to be some kind of loop circut thru the ign switch?