Best option for enhancing 2.0 cooling?

[zouch]

i think it's pretty simple; having the AC engaged commands the fan to activate more, resulting in more airflow over the cooling stack.

I live in Arizona. We were out last weekend at 100F temps, Jeep never gets above 205F or so with the AC on. With it off I will see 215F.

It would be good to hear from one of the tuners but it certainly seems that having the AC on forces the ECU into being far more aggressive with the cooling fan getting to 100%.

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[oceanblue2019]

i think it's pretty simple; having the AC engaged commands the fan to activate more, resulting in more airflow over the cooling stack.

Some other modern ECU's actually monitor the high side pressure, vehicle speed, and ambient temps and control the fans based off that. It's not just "someone pushed the AC button so fans on 100%" logic.

 

[bmpcamry09]

Some other modern ECU's actually monitor the high side pressure, vehicle speed, and ambient temps and control the fans based off that. It's not just "someone pushed the AC button so fans on 100%" logic.

Yep. Both the GPEC2A and GPEC5 in these operate as you describe.

 

[zouch]

so the result is having the AC engaged commands the fan to activate more, resulting in more airflow over the cooling stack.
i like it.

Some other modern ECU's actually monitor the high side pressure, vehicle speed, and ambient temps and control the fans based off that. It's not just "someone pushed the AC button so fans on 100%" logic.

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