Take a look at the symptoms and understand why such a problem occurs.
Air temp sensor resistance.
Causes and symptoms of a bad intake air temperature iat sensor.
This information is very useful for the engine control unit or ecu for many functions and calculations such as calculating the air density for effective ignition timing and fuel efficiency.
The in car temperature sensor icts is an ntc.
Verify any suspicions with a visual inspection of the sensor and its connector.
You will need a hair drier and ohmmeter for the testing portion of this process.
Testing the iat sensor.
A checking iat sensor resistance.
An iat sensor is an important component that is needed while starting up a vehicle s engine.
Let the engine cool before doing this as you can be severely burned.
Intake air temperature sensor location.
A faulty sensor can decrease the life of the engine and reduce the efficiency of fuel consumption.
Two types of iat sensors.
Remove the air intake temperature sensor after first removing the air intake housing.
As the temperature increases the resistance is reduced which reduces the voltage at the sensor.
Testing the iat sensor off the vehicle.
Never use this to test.
Allow the sensor to cool before further testing.
Use a multimeter and verify the manufacturer s specifications 220 240 ohms at 70 80 f to test this sensor for proper resistance.
B checking the iat sensor power and ground circuit.
The intake air temperature sensor or iat sensor has the core function of monitoring the temperature of the air that is entering the engine of your vehicle.
Different names for the iat sensor.
Automotive air conditioning systems use ntc sensors to monitor air temperature.