I have an NA tune with the AEM 1052 and the Modifry dash temp converter it seems the radiator fan doesn't run when the cars getting hot.
When I'm autocrossing and running the engine on grid the temp gauage goes up to 5 bars sometimes, too hot.
My friend told me if I run the AC it turns the radiator fans on, that works and pulls it down to 3-4 bars.

So whys it seem the radiator fan is not coming on on its own, do I need to setup the AEM to switch it on at a lower temp or something?
Does the Modifry alter the signal to the fan or ECU?

 

I'll ask Jae about it here since he set up my race cars AEM. I know he had to set the fan to kick on and off etc in the AEM.

 

Yes there is a setting to turn the fans on or off @ certain temperatures. Do they not turn on at all? Under the arm program go to the options tab at the top of the program >configure outputs> there will be an output tab and a function tab. Click on function. In that box there is a drop down setting that says rad fan. Make sure it says "rad fan on above 190 and off @ 178. If this doesn't help pm me.

 

thanks for the replies hopefully I will get a chance this w-end to check it out I am not sure if the fan is coming on it it seems like its not because when I put the AC on it realy starts to cool it down

 

LS8 controls the rad fans