Air cooled engines this should be mounted so that it is reading the engine oil
temperature. As the temperature of the oil is higher then the water in a water cooled
engine, the “Limp home temperature” in the software must be set to 200 degrees.
The coolant temperature sensor have M12 x 1.5 mm thread.
Other type of coolant sensor can be setup in the software under I/P Analogs.
Inlet Air Temperature Sensor
The air temperature sensor is used to compensate for changes in air density due to air
temperature. Cold air is denser than warm air and therefore requires a greater volume of
fuel to maintain the same air/fuel ratio. This effect is most noticeable in forced induction
engines. The Autronic ECU will automatically compensate using the signal received from
the air temperature sensor.
The sensor is made by Autronic. NTC sensor can be used and should be setup in the
software under I/P Analogs.
The sensor should be mounted to provide the best representation of the actual
temperature of the air entering the combustion chamber, i.e. after any turbo or
supercharger, and intercooler, and as close to the head as possible. The sensor needs to
be in the moving air stream to give fast response times and reduce heat-soak effects.
Once a suitable position has been located for the air temperature sensor a hole should
be drilled and tapped to accept the sensor.
Remove the manifold or inlet tract from the engine before machining the sensor mount.
Do not allow any metal particles to enter the inlet manifold of the engine as these will be
drawn into the engine and damage it. Wash all components before reassemble.
The Inlet Air Temperature sensor have 1/8 NPT thread.
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