Turbo boost gauge
| Turbo boost gauge |
The gauge is driven by a stepper motor which is controlled by the main instrument control module.
The value shown by the boost gauge needle is based on the following: Trionic calculates the mg air mass/consumption and converts this information to a value between 0 and 255. Trionic sends this as a bus message "boost gauge". This value corresponds quite well to the engine torque. The main instrument unit uses this value for the boost gauge needle which shows the driver the load on the engine.
BioPower
The variant with 2.3 litre engine has a turbo pressure gauge in the main instrument unit. The turbo pressure gauge shows air mass per combustion, which reflects the approximate torque of the engine.
As the engine's torque and accordingly air mass per combustion can be higher during E85 operation, the functionality has been modified slightly. Irrespective of the particular ethanol content of the fuel the reading of the turbo pressure gauge is adapted to normally show maximum reading when the engine's air mass per combustion has reached the maximum value
Diagnosis
The function has its own diagnostics in the sending system.
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