Malfunctions and self-diagnosis of the Monomotronic injection system (Audi 100 C4)

Detected faults are stored in the control unit's memory. When servicing in the workshop, the fault store (memory) is queried. This is done using a special device. There is no possibility to poll the memory independently. If you suspect a malfunction in the ignition/fuel injection control system, it is recommended to contact a specialized workshop. In addition, you can use the trouble table, which allows you to detect many of these problems.

(This article was copied from the website: AUDIMANUAL)