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Subject I don't recall ever seeing anything about testing it for
     
Posted by jzack on January 07, 2015 at 7:29 PM
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In Reply To Ambient air temp sensor reading 10 degrees high posted by Fly-Surf on January 07, 2015 at 06:38 PM
     
Message accuracy. Just a diagnosis as working or not. Do you know for sure its off by 10 degrees over a wide span of temperature ranges? Could be off at one extreme (very cold or hot) but good in the mid-ranges?

Asking since the sensor is a thermo resistor -- a resistor than changes value with temperature but in a consistent (linear) way. If always off by 10 degrees - would guess due to age it might just have gone out of spec? There's o adjustment on the car I could find in the factory manual for re-calibrating the system due to a sensor measurement issue.

FWIW - Last SUV I had the sensor would read about 5 degrees high in hot summer temps (98 or higher) but be good the rest of the time.

     
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