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PCM Diagnostics & Tuning HP Tuners | Holley | Diablo

PCM fan control ?

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Old 09-19-2007 | 05:54 PM
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oange ss
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Default PCM fan control ?
does the PCM send a ground signal to the fan relays or a + signal ? thanx
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Old 09-19-2007 | 08:24 PM
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The PCM grounds the fan relays
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Old 09-19-2007 | 09:04 PM
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thank you !
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