Lambda probe

Hello, I have a ford escort kombi 16V CLX with ghia equipment, 77 kw, year of construction ’92. with my car the lambda probe is defective and I bought a new one. a lambda probe/oxygen sensor ls4, universal lambda probe 4 cable connection, bosch. she has 2 white, 1 gray and a black cable. does someone know how to connect the 2 white? is there a circuit diagram? it would be super nice if someone could tell me something about it gruss lylith