A4 Quattro Sedan V6-3.0L (AVK) (2002)
Engine Speed Sensor: Testing and Inspection
Engine Speed (RPM) Sensor -G28-, Checking
Engine Speed (RPM) Sensor -G28-, Checking
Special tools and equipment
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VAG 1526 A
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VAG 1594 A
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VAG 1598/31
NOTE: The engine speed sensor is a combined speed sensor and reference mark sensor. The engine cannot be started without a signal from the Engine
speed (RPM) sensor -G28-. If the signal from the Engine speed (RPM) sensor -G28- fails while the engine is running, the engine will cut out
immediately.
Test sequence
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Before performing test, make sure that sensor is correctly installed and firmly seated.
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Disconnect connector to engine speed sensor.