Component Description

MASS AIR FLOW SENSOR 

The mass air flow sensor is placed in the stream of intake air. It measures the intake flow rate by measuring a part of the entire intake flow. The MAF sensor controls the temperature of the heater in sensing element to a certain amount. The temperature distribution around the heater changes according to the increase in intake air volume. The change is detected by a thermistor and the air volume data is sent to ECM by the MAF sensor.

Courtesy of NISSAN NORTH AMERICA, INC.

INTAKE AIR TEMPERATURE SENSOR 1 

The intake air temperature sensor 1 is built-into mass air flow sensor (bank 1). The 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.

<Reference data>

*: These data are reference values on the diagnosis tool.