FixVault

Intake Air Temperature Sensor

The intake air temperature sensor is built-into the mass air flow sensor (1). The sensor detects intake air temperature and transmits a signal to the ECM.

G04147185Courtesy of NISSAN NORTH AMERICA, INC.

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 rise in temperature.

G04080535Courtesy of NISSAN NORTH AMERICA, INC.

Intake air temperature

[ deg.C (deg.F)]

Voltage* (V)

Resistance (k Ohm)

25 (77)

3.3

1.800 - 2.200

80 (176)

1.2

0.283 - 0.359

*: These data are reference values and are measured between ECM terminals 67 (Intake air temperature sensor) and 68 (Sensor ground).