[Teds89IROC]

LT1 dual fans with the 3 relay system. They didn't come on with the computer when I first did the swap but they worked when i jumped the relay terminals. I figured I'd make a manual fan switch and be done. Following some threads I tried grounding out the green and blue wires on the C100 plug and and no dice. However when I put power to them the fans work. I was in a rush to drive the car so i setup a switch this way and the fans work and keep the car cool but I noticed when the car is running and I flip the switch it starts to get choppy, obviously not right. Key off I have constant power to the D and F fan relays. Blue and green wires are grounded. When I put the ignition on i still have the same constant power plus power to the white wires on the same relays. When I touch the grounded test light to the green and blue wires I get nothing. When I touch them with 12v the fans turn on. I also checked and the fan plugs are grounded.

I'm trying to figure this out and for the life of me cant. Any ideas??