Thread: How does the "smell" sensor actually work?
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Old 04-18-2023, 12:30 PM
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andrewwynn andrewwynn is offline
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FCP is wrong. It measures hydrocarbons in the air and the HVAC system will use that as input to decide to close off outside air for a few minutes at a time to block certain pollutants. I've monitored the sensor values when passing road construction and for example new asphalt will most certainly engage the automatic system to set recirculating air.

I guess the thing has a heater in it to work it's magic and the heater fails so it will stop working.
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