Intake Air Temperature Sensor

Intake Air Temperature Sensor


An Intake Air Temperature Sensor measures the temperature of the incoming air to the engine. This information is provided to the ECU to determine the correct amount of fuel needed for optimum performance and economy. The information from this sensor is used as part of the ECUs Volumetric Efficiency calculations if Auto VE Air Temp Compensation is enabled under Fuel Tuning. Temperature sensors are typically two wire sensors; a signal wire that is connected to an AVI, and a signal ground wire.

Intake Air Temperature



On this node, the Intake Air Temperature sensor calibration can be loaded or entered manually. If you have purchased a air temp sensor from Haltech, calibrations can be loaded directly into the calibration table by using the 'Load from File' button. Calibrations can be saved to file by using the 'Save to File' button. 

Display



This node sets the display settings for the Intake Air Temperature channel. 
Warning Maximum - Sets the pressure at which the Intake Air Temperature sensor Number Displays, Gauges and Bars will enter their warning state
Display Maximum - Sets the pressure at which the Intake Air Temperature sensor gauge and bar displays end. This also set the maximum pressure allowed to be used in settings and tables.

Diagnostics



This node allows the enabling of high and low voltage DTCs as well as Minimum and Maximum pressure DTCs for the Intake Air Temperature sensor.

A DTC severity can be set for each voltage and pressure, which will trigger an Engine Protection level for the relevant setting.

Wiring



This node allows you to assign the input for the Intake Air Temperature sensor. 

Air Temperature sensors use an Analog Input. Any available AVI can be used if the sensor is wired directly to the ECU. 

Setting the Input Type allows the ECU to accept a voltage calibrated sensor, or a resistance calibrated sensor. Useful if you dont have a voltage calibration, or you wish to enter your calibration data in as resistance values. This will change the calibration screen found in the main Intake Air Temperature sensor node.
A K-type thermocouple can also be used, such as in in turbocharged non-intercooled high horsepower setups where high intake air temps (200c+) are common.

It is recommended to enable the Pull Up when using a 2-wire temperature sensor.


    • Related Articles

    • Inlet Air Temperature Sensor

      The air temperature sensor is used to compensate for changes in air density due to air temperature. Cold air has a higher density than warm air and therefore requires a greater volume of fuel to maintain the same air/fuel ratio. This effect is most ...
    • Air Conditioner Temperature Sensor

      An Air Conditioner Temperature Sensor allows the ECU to continuously monitor the temperature of the air conditioning system. Temperature sensors are typically two wire sensors; a signal wire that is connected to an AVI, and a signal ground wire.+ Air ...
    • Ambient Air Temperature Sensor

      An Ambient Air Temperature Sensor measures the temperature of the air outside of the vehicle. Temperature sensors are typically two-wire sensors; a signal wire that is connected to an AVI, and a signal ground wire. On this node, the Ambient Air ...
    • Intake Air Temperature Sensor

      An Intake Air Temperature Sensor measures the temperature of the incoming air to the engine. This information is provided to the Haltech ECU to determine the correct amount of fuel needed for optimum performance and economy. Temperature sensors are ...
    • Oil Temperature Sensor

      An Oil Temperature Sensor can be used with your ECU for datalogging and for Engine Protection purposes. Temperature sensors are typically two wire sensors; a signal wire that is connected to an AVI, and a signal ground wire. Oil Temperature ...