The functioning of the ignition and injection system is supported by an extensive program of emergency operation, if the sensor fails, there is a break in the wire connection or there is a contact with the ground. At the same time, a malfunction is registered in the electronic storage device.
The emergency operation mode is distinguished by the control unit as follows: the normal control mode is retained, an auxiliary value is used instead of the missing information in the ignition and fuel metering calculations. Example: if the temperature sensor fails, the control unit makes calculations with an auxiliary coolant temperature value of 80°C.
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