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 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.
Diagnostics
This node allows the enabling of high and low voltage DTCs as well as Minimum and Maximum temperature DTCs for the Ambient Air Temperature sensor.
A DTC severity can be set for each voltage and temperature, which will trigger an Engine Protection level for the relevant setting.
Wiring
This node allows you to assign the input for the Ambient 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 don't 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 Ambient Air Temperature sensor node.
A K-Type Thermocouple input can also be used.
It is recommended to enable the Pull Up when using a 2-wire temperature sensor.
Related Articles
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 ...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 ...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 ...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. Wiring Tab Options Input Type ...Fuel Temperature Sensor
A Fuel 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. Fuel Temperature Sensor ...