9-3 Convertible (9400) L4-2.0L Turbo (2.0 HOT) (2003)
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Turbo Boost Gauge: Description and Operation
Turbo Gauge, Trionic T7
The main instrument unit has an electronic turbo gauge.
The gauge is driven by a stepping motor that is controlled by the main instrument unit control module.
The value shown by the turbo gauge needle is based on the following information: Trionic T7 calculates the air mass in mg/combustion and converts it to
a value between 0 and 255. Trionic sends this information to the bus as a bus message "Turbo gauge", the value of which corresponds quite well with the
engine torque.
The main instrument unit uses this value for the turbo needle, which is used to inform the driver of the load under which the engine is working.
Turbo Gauge With Inputs
