Whilst replacing my ECT sensor, found the connector plug cracked. replaced the connector but cant figure out which wires go into which hole. I marked the wires but sharpie rubbed off and smeared on the tape. Any help would greatly be appreciated. Even if someone has a clear picture, I could figure it out from there. Please help

 

Is this the upper (Green) or lower (blue) coolant temperature sensor?

 

It's the green sensor w/ four wire connector