Electric Fans

Has anyone used the MS to turn on/off electric radiator fans? How does this set up work?

Thanks

It just controls the fan relay at whatever temperature you set. Pretty simple from what I understand. I'll find out, eventually.

You have to configure a spare port. You can use the Fast Idle port (say you have an IAC stepper motor instead or a PWM solenoid) for something other than fast idle . Or think, but not familiar with, the version 3 has some extra spare outputs. Here's the link to configuring them, I haven't completely read and understood it yet though.

http://www.megamanual.com/ms2/spare.htm

It works really well. On my setup, the fans come on at about 92 degrees celcius. I also set up the fans to only come on if the engine was above (I think) 500rpm. This ensures the fans aren't running when you are cranking. I used a spare port - the warmup LED in my case.