Car Digifant Injection System Audi 100 C4, petrol
The main elements of the Digifant system
Control unit The control unit receives the following types of information via the multi-pin plug from: Starter from terminal 50 - about the beginning and end...
Control unit The control unit receives the following types of information via the multi-pin plug from: Starter from terminal 50 - about the beginning and end...
Operating procedure
Cold start: The idle speed stabilization valve allows a certain amount of air to be admitted in addition to the air that comes in normally. At the same time,...
Cold start: The idle speed stabilization valve allows a certain amount of air to be admitted in addition to the air that comes in normally. At the same time,...
Malfunctions and self-diagnosis
The Digifant injection control unit can recognize and record some of the faults that occur during engine operation. The detected faults are recorded in the...
The Digifant injection control unit can recognize and record some of the faults that occur during engine operation. The detected faults are recorded in the...
Do-it-yourself repair
Unfortunately, deep repairs of injection system faults at home are not possible, because more thorough checks require, first of all, control and measuring...
Unfortunately, deep repairs of injection system faults at home are not possible, because more thorough checks require, first of all, control and measuring...
Checking individual elements
Pressure regulator Pressure measurements require the presence of an appropriate pressure gauge (V.A.G. 1318) with shut-off valve and adapter. In idle mode, the...
Pressure regulator Pressure measurements require the presence of an appropriate pressure gauge (V.A.G. 1318) with shut-off valve and adapter. In idle mode, the...
Removal injection nozzles
Remove the vacuum hoses to the brake booster on the exhaust manifold. Remove the idle speed control valve and its mount. Loosen the retaining clip between the...
Remove the vacuum hoses to the brake booster on the exhaust manifold. Remove the idle speed control valve and its mount. Loosen the retaining clip between the...
Idle mode check and exhaust gas analysis
TO #7 With the Digifant injection system, no adjustment work is required because the system is self-learning. This means that the control unit adjusts the idle...
TO #7 With the Digifant injection system, no adjustment work is required because the system is self-learning. This means that the control unit adjusts the idle...
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