so i replaced my Aux fan because my orginal fan cracked. i replaced the coolant temperature sensor. Wired correctly. Cleared codes. Fuses re all good. I Don't know what it could be. anyone with info on how to fix greetly appreciated. Only thing i can think of the wiring between the temp sensor and fan is bunk.

 

86' 2.8L camaro

 

Are you sure it worked before? If you take a paperclip and stick it in the A/B terminals of the connector under the dash (top row, furthest right two terminals), that will turn on the fan, you'll at least know if it functions correctly.