IACV plug help

Hey all, long story but basically , i just yanked the pins out of the socket of the IACV and now ive got to put them back but im not sure which side goes where…

ive got a yellow/black wire and a blue/while wire, i guess its a 50/50 chance but anyone have an idea?

Noone?! Can someone please pop the bonnet and have a quick look?!