Fan Wiring on EMS
 

Almost done hooking up my EMS-4. I was wondering how you guys wired your fans.

Thanks!

85 goes to available GPIO1-4. you can use 5-8 but you dont need to waste the PWM outputs. You want to save those for other things. 86 goes to sw 12v power. 30 goes to good 12v power source with a fuse. preferably 12awg or larger. 87 goes to fan +. Again 12awg+ wire. ground the fan to a good chassis or battery ground.

Make sure you set your Hysteresis split >5. This will keep the output from toggling too quickly. In your AEMTuner folder there is an Instructions folder. In there there is an EMS-4 System Schematic. That has some good info.

EB Turbo

thanks again for the info.

Simon, Where are you from in SoCal?

EB Turbo

I'm really close to DT Los Angeles, Temple City to be exact. Why whats up?

It is nice to know where the other AEM + Rotary cars are in SoCal. I live in West LA and work in Chatsworth.

EB Turbo