my maf
 

hi can anyone help. i have a impreza turbo uk and i wish to put my orange lable maf on but wires have stumped me. my car has 4 wires yellow/blue, green/black, lightblue, green. the new maf has green, black/green, yellow/green do i just colour conect them without the lightblue.??? colour to colour. please help dont want to cock new maf. thanks