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. 

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.

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.

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.