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165 ECU--values for secondary fan on/off?

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Old May 31, 2001 | 09:52 PM
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Jon88GTA's Avatar
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From: Kingwood (just NE of Houston), TX, USA
165 ECU--values for secondary fan on/off?

What do these values do? I thought the secondary fan was controlled only by a temperature switch in the block, or by the A/C pressure switch. BTW, I have an '88 L98 GTA.

Thanks,
Jon
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Old Jun 1, 2001 | 09:24 AM
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afgun's Avatar
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From: New Yuck
Car: Non F-body :(
Engine: Pontiac 301
Transmission: TH350
What are you referring to? AFAIK the "aux fan" pin on the ECM is input only...
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