The control unit of the four-point injection system has a program memory. The memory is able to recognize and remember defects that occur during engine operation. A control lamp on the instrument panel signals the driver about the malfunction. Information about the malfunction is saved for 20 engine starts. If the defect does not reappear during this time, for example, due to a swinging contact, then the information about it is erased.
The workshop has a reading device for the ignition/injection system, which is connected to the connector under the center console. This way, information about malfunctions in the system can be read.
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Malfunctions and self-diagnosis (Opel Vectra B)
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