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Old January 4th, 2009, 08:30 AM   #3 (permalink)
Olds64
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The air temperature sensor is one of many sensors used on modern cars to regulate fuel economy. Ultimately though, the three most important sensors to a cars fuel economy are the coolant temperature sensor, the O2 sensor, and the throttle position sensor. These three sensors together with the computer run a car on a "closed loop" system after the car heats up.
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