What is the normal intake air temperature for a car?

1 Answers
DelJuliet
07/29/25 12:36pm
Car intake air temperature normally ranges from 10 to 50 degrees Celsius. The intake air temperature sensor is a negative temperature coefficient thermistor. When the temperature rises, the resistance decreases, and when the temperature drops, the resistance increases. The change in resistance in the circuit leads to voltage variations, thereby generating different voltage signals to complete the automatic operation of the control system. When the engine is cold, the signal from the intake air temperature sensor is basically the same as that from the engine coolant temperature sensor. When the engine is warm, its signal voltage is approximately 2 to 3 times that of the coolant temperature sensor. Thermocouples are commonly used temperature sensors in temperature measurement, characterized by a wide temperature range, adaptability to various atmospheric environments, durability, and no need for power supply.
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