Nissan Car Altima & Sentra 1999-06

Intake Air Temperature (IAT) Sensor

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Testing



1.6L (GA16DE) I4 Engine & 2.0L (SR20DE) I4 Engine
  1. Measure the resistance of the IAT sensor.
  2.  
  3. The sensor resistance should be 2.1-2.9 kohms at 68°F and decrease as air temperature rises.

    Click image to see an enlarged view

    Fig. Intake Air Temperature Sensor specifications

  4.  

2.4L (KA24DE) I4 Engine
  1. Measure the resistance of the IAT sensor.
  2.  
  3. The sensor resistance should be 2.1-2.9 kohms at 68°F and decrease as air temperature rises.

    Click image to see an enlarged view

    Fig. Intake Air Temperature Sensor specifications

  4.  

 
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