[slyalfa]

The ECU is the white one. which you should be able to use with the new ECU.
and switching the fan relay from the ECU is a big time improvement. the switch in the bottom of the radiator is a problem on a older car. That part seems to get pluged up first. and the car will overheat due to that probe not seeing the temp of the coolent. I never overheated after having the ECU control the fan.