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Old 08-24-2008, 03:27 AM   #27 (permalink)
Formula413
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Join Date: Jan 2008
Location: In the Northeast dreaming of the Southwest
Posts: 596

Aegean C - '17 Honda Civic LX
90 day: 42.05 mpg (US)
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I hate HVAC controls that don't allow you to select compressor or recirculation independent of vent setting, both my cars have the dumbed down setup. But I'm pretty sure my Escort disables the compressor for the defrost settings when the ambient temperature is below a certain point, I think 45 degrees F. I assume it uses the IAT sensor to do this.
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