Author Topic: Outside Ambient Air Temperature  (Read 4431 times)

Offline Road Runner

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Outside Ambient Air Temperature
« on: January 29, 2011, 03:01:03 AM »
I was wondering a few things. One, how good is the reading for the outside Air Temp. Two why does it take so long to read the outside temps.

Offline UltraGauge Admin

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Re: Outside Ambient Air Temperature
« Reply #1 on: January 29, 2011, 09:38:33 AM »
Gauges such as Ambiet Air temp are passed directly from the vehicles ECM and displayed by UltraGauge.  UG does not interpret the data, it just displays a digital value.   The reading is only as accurate and responsive as the vehicle's manufacturer has decided to make it.   Also, the granularity of ambient air temp is in increments of 1 degree Celsius or 1.8 degrees F.   For example, if you were to cool the ECM down to 0 degrees F and then watched it slow heat up the temps displayed would be  0 --> 1.8F --> 3.6 --> 5.4 --> 7.2 --> etc.