Turbo boost gauge
The car is equipped with an electronic turbo boost gauge that provides information on the engine load. The engine control module (ECM) receives information on the current air mass/combustion from the mass air flow sensor, located between the air filter and the intake side of the turbocharger. The engine control module calculates a value corresponding to the engine load and transmits a bus message for indicating the current turbo boost on the P-bus. CIM forwards the message to the I-bus. The main instrument unit displays this value on the turbo boost gauge.