I for the most part have successfully swaped wiring harnesses from an 88 iroc to a 85 Z28. I need to know if the cooling fans require a temp switch, or if the computer controls that function. If there is a switch then there is one wire that I think it could be the one for the switch, being that I didn't know what it was hooked up to I didn't label it like everything else. I believe it is a brown wire, and where would the switch go if it is needed?Could anyone help me out on this one?