Unless it's doing it when I don't have the AC on, it's not that. It also only does it exactly once per trip. I can actually feel it through the gas pedal or brake.
I kind of wonder. I'm the only driver (for now), and always turn the A/C off. I also seldom use the defroster setting (which, in my Miata, turns on the A/C whether I have it on or not--I disabled that
), so my head's itching...IDK why you would disable the A/C for defrost; it's there to remove the humidity from the air so it DOESN'T cloud over.I kind of wonder. I'm the only driver (for now), and always turn the A/C off. I also seldom use the defroster setting (which, in my Miata, turns on the A/C whether I have it on or not--I disabled that
It's a Miata/convertible thing: The most effective way to keep warm is not to blow hot air right in your face, but, rather, to blow it at the windshield and let it waft over you. The Miata, however, is quite sensitive to the A/C running. Hence, I'd rather disable the A/C unless I explicitly turn it on. I honestly don't know why car companies have the thing turning on automatically for any reason. If I want it on, I can flick a switch or push a button, thank you very much.
it's a Miata thing. The cabin is so small, heat or equal temp air will defrost any window just fine. The purist don't use AC and depower PS as well (both suck what little power it had). I also didn't have AC and the only time when it really sucked is sitting in traffic on a 100+ day -never again... As long as there's air flow, you are good.
The question is more why you would have the A/C automatically turn on for any reason whatsoever. That I have yet to get a satisfactory response on. Telling me how the A/C works in theory does not explain that.
The system doesn't know when I want it to run. I'm smart enough to figure it out. End of story.
I highly doubt this car or any standard production car (ultra luxury cars not withstanding) has a hygrometer. The HVAC system only has a standard temp sensor (prob a cheap and not very accurate one) that will shut off the AC compressor when it detects the temp is equal to or below you have it set at. It will remain on but blow air until it detects that it is above a certain threshold compared to what you have it set at. You may feel the temp change once the AC is off/on but the temp sensor (due to proximity to vents) may not detect the change. I bet if you add some wiring and put the temp sensor all the way in the back hatch (3d row) the AC will never turn off in Auto mode -unless it is winter.
I can accept this if it was true, however, we just got into the car and started it up… Also, if you turn OFF the air and turn OFF recirc (allowing outside air to come it), it lets in ambient outside air, which is COOL! We then turn ON the air but kept recirc OFF and it blows warm air again! Give it a try next time and let me know what you feel. Would be interested in hearing what others are feeling.
