This is for my 2004 ecsb 5.3 I just installed an ls1 fan with a nelson harness. I follow the directions to the letter. When I hooked the green wire to the loom the on fan turned on high. Problem was the truck was off. I metered the green wire and it shuts on and off with the ac. The issue I am having is when the ac clutch kicks on the two fans go to low and when the clutch turns off they go high. I have tried the other green wire which keeps fans on but only low. Its like it is backwards. I am lost. I have even talked to ray at nelson to trouble shoot and he confirmed what I did was correct.

Anyone have any ideas or help?

Thanks