Sorry to bring this back but I have a quick question...
I just installed the LS1 fans with an older two relay harness. My question is that I have an orange wire and a yellow wire and I dont know which one goes where in the PCM harness. Also it never came with a jumper wire for the relay. I assuming I can just use a short wire as a DIY?
Much like mindblown, I need to resurrect this post. I have an 08 9-7X Aero. I've installed the blue wire to the blue J1 Computer harness, and teh green to the Grey (J3) harness as well. Either I've got the green wire in the wrong slot, or somethings buggy. Both fans work, I drove it for a while with fans wired to ignition. I finally got the tune, and now have installed the wires into the harness. My issue is that the top fan isn't coming on. It's the two relay setup from PCMofNC. Now the instructions state, that theres already a wire in the slot you need (#49). Is that for ONLY the 2007 model year, or for all 07-09 ? I ask this because there is no wire in pin #49 in my Grey J3 harness.
Am I missing something? Also, would I be able to wire BOTH fans to run on the low cool setting?