Intake air temperature sensor P0110 testing and replacement. We go over how you can test the sensor without any fancy or expensive scan tools. NOTE: Be smart around open flames. (No jewelry, baggy clothes, etc.) You can also use a hair dryer to test the sensor. This was performed on a 1997 Nissan Maxima. Check with your vehicle's repair manual for testing parameters.

The intake air temperature sensor detects intake air temperature and transmits a signal to the ECM. The temperature sensing unit uses a thermistor, which is sensitive to the change in temperature. Electrical resistance of the thermistor decreases in response to the temperature rise.

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P0110 - An excessively high or low voltage from the sensor is entered in to the ECM. Or, rationally incorrect voltage from the sensor is entered to the ECM, compared to the voltage signal from engine coolant temperature sensor.

Note:
Any attempt to repair automotive parts and/or systems carries risk of personal injury. Always adhere and follow safe practices when working on vehicles. Such as, safety glasses, jack stands, no loose clothing, etc. No guarantee or warranty is implied. Use the information in this video at your own risk. Carsntoys is a member of the Amazon Influencer Program.

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