What is the standard data for the intake air temperature sensor?

1 Answers
HannahFitz
07/25/25 2:06pm
Under normal conditions, when the temperature is 20°C, the resistance value is approximately 2-3 kiloohms; at 80°C, the resistance value is about 0.4-0.7 kiloohms. If the measurement results do not meet the specified requirements, the sensor should be replaced. When the intake air temperature sensor installed inside the mass air flow sensor is damaged, the mass air flow sensor should be replaced. Below is additional information about the intake air temperature sensor: 1. Function: The intake air temperature sensor is essentially a negative temperature coefficient thermistor, whose role is to transmit the intake air temperature to the ECU in the form of a voltage signal, which the ECU can then use as a correction signal for fuel injection and ignition. 2. Location: The intake air temperature sensor is generally installed in the intake pipe or inside the mass air flow meter. 3. Damage hazards: When the engine's intake air temperature sensor is damaged, the ECU not only cannot accurately use it as a correction signal for fuel injection and ignition but may also receive incorrect information, leading to issues such as difficulty starting the engine, unstable idle speed, and increased tailpipe emissions pollution.
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