I did something similar to what your initial question was. I swapped out the standard style relay for a solid state mini relay and set up DC% tables that are temperature and speed .
I had use the GP PWM calibrations. I did it for both fans that are driven by the ecu . I did it to eliminate the current shock of the fan start ups on idle. I start with 20% DC to start up fans about 3°c before the temp I want them on. I start the 2nd on 20% when first pump hits 100%DC. I also found this method controlled temperature better then just bring fans on at desired temps..
ozyvr4 got a reaction from BoostedNerd in VR4+ Aux 2 for Fan Control
