ENGINE CONTROL UNIT (ECU):
DIAGNOSTICS and SYSTEM OPERATION for the 20V Turbo 5 Cylinder Engines
1991 200TQ 2.22 litre 20V (3B engine), 1992-96 S4/S6 2.22 litre 20V
(AAN engine)
20V Turbo Engine, FAULT CODE READING,
OUTPUT TESTS
20V Turbo Engine, ENGINE SENSORS AND COMPONENTS
20V Turbo Engine, Wiring, Connector Pin Out,
ECU Internal Photos
IMPORTANT SAFETY INFORMATION
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