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An 848 manual says that "Air 4.1" is an "air temperature sensor error"

"Air temperature sensor
The sensor (1) is located on the right-hand side of the instrument panel and measures the external air
the temperature signal is sent to the ECU integrated in the instrument panel for display and sent over
the CAN line to the engine ECU which uses it to make corrections to the map."

So I would guess you have a bad connection or a bad sensor.


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