PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

Question for the PCM programmers

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Old Oct 8, 2017 | 08:11 AM
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Default Question for the PCM programmers

I have a 0411 PCM 2004 and want to set the fan control so that they are activated by engine/cooling temps and not A/C conditions or via the BCM (fan1)

Is this possible as I have asked a local programmer who said if that's how it was set by the factory then that's it, no way to change it?

heres the operation details.
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Fan Control.pdf (115.5 KB, 79 views)
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Old Oct 8, 2017 | 08:19 AM
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From: Turnin' Wrenches Infractions: 005
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Im not sure im understanding the why behind this. But what i would do is move the ac pressure enable up to the max which shows 500 in my tune. That way the ac should never trigger it.
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Old Oct 8, 2017 | 05:07 PM
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Originally Posted by 01ssreda4
Im not sure im understanding the why behind this. But what i would do is move the ac pressure enable up to the max which shows 500 in my tune. That way the ac should never trigger it.

Thanks for the advice, the intention is to take the A/C condition out of triggering the fans so that only the temperature senders trigger the fans as I probably will not use the A/C.
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Old Oct 8, 2017 | 05:46 PM
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From: Turnin' Wrenches Infractions: 005
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They work fine without the AC unhooked, just so you know.
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