engine: 4a gze ae 92 have 4 wires o2 sensor as below;

gray:?
brown:?
black-white: heater
black-pink: heater

i just got a new one
white: ?
blue: ?
black: heater
black: heater

i don't know how to match. and pls help to detail each color for..??

o you still have this prob?